iter2 step2: GLib/GStreamer compat shim, build succeeds
Vendored gsth265parser + nalutils + gstbitreader + gstbytereader (the
Step 1 commit) compile cleanly against libc + libv4l2 only after
adding 1 compat translation unit + 5 stub headers, no edits to the
vendored .c/.h files themselves.
src/h265_parser/gst_compat.{h,c} — new files (MIT, original work):
- GLib type aliases (gboolean, gchar, gint*, guint*, gsize, gpointer)
- Memory helpers (g_malloc/g_free as #define free, g_memdup2 inline)
- Asserts as no-op + parser-return-code-propagation
- All GST_DEBUG/INFO/WARNING/ERROR/LOG/FIXME as no-ops (the parser
is heavy on debug logging; we compile it all out)
- GArray implementation (~100 LOC, just enough for gsth265parser.c's
24 call sites)
- GList full struct with .data/.next/.prev so callers compile;
list-manipulation functions abort() — dead code paths only
- Byte-order read/write macros (GST_READ_UINT8/16/24/32/64_LE/BE,
GST_WRITE_UINT8/16/24/32_BE) — aarch64 LE inlines
- g_once_init_enter/leave as simple gate
- G_MAXUINT*, G_MAXINT*, G_MINxxx, G_GNUC_* attribute macros, etc.
- Opaque GstBuffer/GstMemory/GstMapInfo + abort-stub functions for
the encoder-side SEI-insertion paths the libva backend never invokes
- gst_util_ceil_log2 real impl (used by slice-header parser; dead
for our SPS-only call path but cheaper to implement than stub)
src/h265_parser/gst/{gst.h,base/base-prelude.h,base/gstbitwriter.h,
codecparsers/codecparsers-prelude.h,glib-compat-private.h} — 5 new
stub headers (MIT). All include gst_compat.h. gstbitwriter.h adds
abort-stub functions for the bit-writer API (used by nalutils.c's NAL
emulation-prevention encoder path — dead code for the parse-only
libva backend).
src/meson.build — added the 5 new .c source files and 10 new .h
headers; added include_directories('h265_parser') to the include path
so the vendored files' '#include <gst/base/...>' style references
resolve to the stub headers + actual vendored files in the local
tree.
Build verified: ninja -C build produces v4l2_request_drv_video.so
(682 KB, up from 485 KB pre-vendor — the +200 KB is the vendored
parser code). nm shows gst_h265_parse_sps, gst_h265_parse_sps_ext,
gst_h265_parser_identify_nalu, and the other functions we need for
Step 4 are present in the binary.
Two #warning messages from gsth265parser.h about API stability are
upstream-intentional and harmless ('The H.265 parsing library is
unstable API and may change in future').
This commit completes Step 2 of ampere-kernel-decoders iter2 Phase 6.
Backend remains functionally identical to pre-iter2 — the new code
compiles + links but is not yet called from h265_set_controls (that's
Step 4). Existing 5 codecs continue to work as before.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
@@ -0,0 +1,14 @@
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/* Stub for <gst/base/base-prelude.h> — GStreamer base-lib prelude.
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* In upstream GStreamer, this sets up the GstBaseExport macro + GObject
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* boilerplate. We bypass all of that and provide only what our four
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* vendored .c files actually need (gst_compat.h's typedefs).
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*
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* Crucially we also #define GST_BASE_API to nothing so the function
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* declarations in gstbitreader.h / gstbytereader.h drop the
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* dllimport / visibility attribute prefix.
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*/
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#ifndef LIBVA_V4L2_REQUEST_FOURIER_BASE_PRELUDE_STUB
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#define LIBVA_V4L2_REQUEST_FOURIER_BASE_PRELUDE_STUB
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#include "gst_compat.h"
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#define GST_BASE_API
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#endif
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@@ -0,0 +1,307 @@
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/* GStreamer
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*
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* Copyright (C) 2008 Sebastian Dröge <sebastian.droege@collabora.co.uk>.
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*
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* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Library General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2 of the License, or (at your option) any later version.
|
||||
*
|
||||
* This library is distributed in the hope that it will be useful,
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||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Library General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Library General Public
|
||||
* License along with this library; if not, write to the
|
||||
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#define GST_BIT_READER_DISABLE_INLINES
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#include "gstbitreader.h"
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#include <string.h>
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/**
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* SECTION:gstbitreader
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* @title: GstBitReader
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* @short_description: Reads any number of bits from a memory buffer
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* @symbols:
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* - gst_bit_reader_skip_unchecked
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* - gst_bit_reader_skip_to_byte_unchecked
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* - gst_bit_reader_get_bits_uint8_unchecked
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* - gst_bit_reader_peek_bits_uint8_unchecked
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* - gst_bit_reader_get_bits_uint16_unchecked
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* - gst_bit_reader_peek_bits_uint16_unchecked
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* - gst_bit_reader_get_bits_uint32_unchecked
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* - gst_bit_reader_peek_bits_uint32_unchecked
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* - gst_bit_reader_get_bits_uint64_unchecked
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* - gst_bit_reader_peek_bits_uint64_unchecked
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*
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* #GstBitReader provides a bit reader that can read any number of bits
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* from a memory buffer. It provides functions for reading any number of bits
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* into 8, 16, 32 and 64 bit variables.
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*/
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/**
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* gst_bit_reader_new: (skip)
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* @data: (array length=size): Data from which the #GstBitReader
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* should read
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* @size: Size of @data in bytes
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*
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* Create a new #GstBitReader instance, which will read from @data.
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*
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* Free-function: gst_bit_reader_free
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*
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* Returns: (transfer full): a new #GstBitReader instance
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*/
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GstBitReader *
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gst_bit_reader_new (const guint8 * data, guint size)
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{
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GstBitReader *ret = g_new0 (GstBitReader, 1);
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ret->data = data;
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ret->size = size;
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return ret;
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}
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/**
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* gst_bit_reader_free:
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* @reader: (in) (transfer full): a #GstBitReader instance
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*
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* Frees a #GstBitReader instance, which was previously allocated by
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* gst_bit_reader_new().
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*/
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void
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gst_bit_reader_free (GstBitReader * reader)
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{
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g_return_if_fail (reader != NULL);
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g_free (reader);
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}
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/**
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* gst_bit_reader_init:
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* @reader: a #GstBitReader instance
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* @data: (in) (array length=size): data from which the bit reader should read
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* @size: Size of @data in bytes
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*
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* Initializes a #GstBitReader instance to read from @data. This function
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* can be called on already initialized instances.
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*/
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void
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gst_bit_reader_init (GstBitReader * reader, const guint8 * data, guint size)
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{
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g_return_if_fail (reader != NULL);
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reader->data = data;
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reader->size = size;
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reader->byte = reader->bit = 0;
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}
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/**
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* gst_bit_reader_set_pos:
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* @reader: a #GstBitReader instance
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* @pos: The new position in bits
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*
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* Sets the new position of a #GstBitReader instance to @pos in bits.
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*
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* Returns: %TRUE if the position could be set successfully, %FALSE
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* otherwise.
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*/
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gboolean
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gst_bit_reader_set_pos (GstBitReader * reader, guint pos)
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{
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g_return_val_if_fail (reader != NULL, FALSE);
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if (pos > reader->size * 8)
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return FALSE;
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|
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reader->byte = pos / 8;
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reader->bit = pos % 8;
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return TRUE;
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}
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/**
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* gst_bit_reader_get_pos:
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* @reader: a #GstBitReader instance
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*
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* Returns the current position of a #GstBitReader instance in bits.
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*
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* Returns: The current position of @reader in bits.
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*/
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guint
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gst_bit_reader_get_pos (const GstBitReader * reader)
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{
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return _gst_bit_reader_get_pos_inline (reader);
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}
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|
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/**
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* gst_bit_reader_get_remaining:
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* @reader: a #GstBitReader instance
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*
|
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* Returns the remaining number of bits of a #GstBitReader instance.
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*
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* Returns: The remaining number of bits of @reader instance.
|
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*/
|
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guint
|
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gst_bit_reader_get_remaining (const GstBitReader * reader)
|
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{
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return _gst_bit_reader_get_remaining_inline (reader);
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}
|
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|
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/**
|
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* gst_bit_reader_get_size:
|
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* @reader: a #GstBitReader instance
|
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*
|
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* Returns the total number of bits of a #GstBitReader instance.
|
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*
|
||||
* Returns: The total number of bits of @reader instance.
|
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*/
|
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guint
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gst_bit_reader_get_size (const GstBitReader * reader)
|
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{
|
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return _gst_bit_reader_get_size_inline (reader);
|
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}
|
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|
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/**
|
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* gst_bit_reader_skip:
|
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* @reader: a #GstBitReader instance
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* @nbits: the number of bits to skip
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*
|
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* Skips @nbits bits of the #GstBitReader instance.
|
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*
|
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* Returns: %TRUE if @nbits bits could be skipped, %FALSE otherwise.
|
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*/
|
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gboolean
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gst_bit_reader_skip (GstBitReader * reader, guint nbits)
|
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{
|
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return _gst_bit_reader_skip_inline (reader, nbits);
|
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}
|
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|
||||
/**
|
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* gst_bit_reader_skip_to_byte:
|
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* @reader: a #GstBitReader instance
|
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*
|
||||
* Skips until the next byte.
|
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*
|
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* Returns: %TRUE if successful, %FALSE otherwise.
|
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*/
|
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gboolean
|
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gst_bit_reader_skip_to_byte (GstBitReader * reader)
|
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{
|
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return _gst_bit_reader_skip_to_byte_inline (reader);
|
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}
|
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|
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/**
|
||||
* gst_bit_reader_get_bits_uint8:
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* @reader: a #GstBitReader instance
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* @val: (out): Pointer to a #guint8 to store the result
|
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* @nbits: number of bits to read
|
||||
*
|
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* Read @nbits bits into @val and update the current position.
|
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*
|
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* Returns: %TRUE if successful, %FALSE otherwise.
|
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*/
|
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|
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/**
|
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* gst_bit_reader_get_bits_uint16:
|
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* @reader: a #GstBitReader instance
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* @val: (out): Pointer to a #guint16 to store the result
|
||||
* @nbits: number of bits to read
|
||||
*
|
||||
* Read @nbits bits into @val and update the current position.
|
||||
*
|
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* Returns: %TRUE if successful, %FALSE otherwise.
|
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*/
|
||||
|
||||
/**
|
||||
* gst_bit_reader_get_bits_uint32:
|
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* @reader: a #GstBitReader instance
|
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* @val: (out): Pointer to a #guint32 to store the result
|
||||
* @nbits: number of bits to read
|
||||
*
|
||||
* Read @nbits bits into @val and update the current position.
|
||||
*
|
||||
* Returns: %TRUE if successful, %FALSE otherwise.
|
||||
*/
|
||||
|
||||
/**
|
||||
* gst_bit_reader_get_bits_uint64:
|
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* @reader: a #GstBitReader instance
|
||||
* @val: (out): Pointer to a #guint64 to store the result
|
||||
* @nbits: number of bits to read
|
||||
*
|
||||
* Read @nbits bits into @val and update the current position.
|
||||
*
|
||||
* Returns: %TRUE if successful, %FALSE otherwise.
|
||||
*/
|
||||
|
||||
/**
|
||||
* gst_bit_reader_peek_bits_uint8:
|
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* @reader: a #GstBitReader instance
|
||||
* @val: (out): Pointer to a #guint8 to store the result
|
||||
* @nbits: number of bits to read
|
||||
*
|
||||
* Read @nbits bits into @val but keep the current position.
|
||||
*
|
||||
* Returns: %TRUE if successful, %FALSE otherwise.
|
||||
*/
|
||||
|
||||
/**
|
||||
* gst_bit_reader_peek_bits_uint16:
|
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* @reader: a #GstBitReader instance
|
||||
* @val: (out): Pointer to a #guint16 to store the result
|
||||
* @nbits: number of bits to read
|
||||
*
|
||||
* Read @nbits bits into @val but keep the current position.
|
||||
*
|
||||
* Returns: %TRUE if successful, %FALSE otherwise.
|
||||
*/
|
||||
|
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/**
|
||||
* gst_bit_reader_peek_bits_uint32:
|
||||
* @reader: a #GstBitReader instance
|
||||
* @val: (out): Pointer to a #guint32 to store the result
|
||||
* @nbits: number of bits to read
|
||||
*
|
||||
* Read @nbits bits into @val but keep the current position.
|
||||
*
|
||||
* Returns: %TRUE if successful, %FALSE otherwise.
|
||||
*/
|
||||
|
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/**
|
||||
* gst_bit_reader_peek_bits_uint64:
|
||||
* @reader: a #GstBitReader instance
|
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* @val: (out): Pointer to a #guint64 to store the result
|
||||
* @nbits: number of bits to read
|
||||
*
|
||||
* Read @nbits bits into @val but keep the current position.
|
||||
*
|
||||
* Returns: %TRUE if successful, %FALSE otherwise.
|
||||
*/
|
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|
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#define GST_BIT_READER_READ_BITS(bits) \
|
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gboolean \
|
||||
gst_bit_reader_peek_bits_uint##bits (const GstBitReader *reader, guint##bits *val, guint nbits) \
|
||||
{ \
|
||||
return _gst_bit_reader_peek_bits_uint##bits##_inline (reader, val, nbits); \
|
||||
} \
|
||||
\
|
||||
gboolean \
|
||||
gst_bit_reader_get_bits_uint##bits (GstBitReader *reader, guint##bits *val, guint nbits) \
|
||||
{ \
|
||||
return _gst_bit_reader_get_bits_uint##bits##_inline (reader, val, nbits); \
|
||||
}
|
||||
|
||||
GST_BIT_READER_READ_BITS (8);
|
||||
GST_BIT_READER_READ_BITS (16);
|
||||
GST_BIT_READER_READ_BITS (32);
|
||||
GST_BIT_READER_READ_BITS (64);
|
||||
@@ -0,0 +1,328 @@
|
||||
/* GStreamer
|
||||
*
|
||||
* Copyright (C) 2008 Sebastian Dröge <sebastian.droege@collabora.co.uk>.
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Library General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2 of the License, or (at your option) any later version.
|
||||
*
|
||||
* This library is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Library General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Library General Public
|
||||
* License along with this library; if not, write to the
|
||||
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
|
||||
* Boston, MA 02110-1301, USA.
|
||||
*/
|
||||
|
||||
#ifndef __GST_BIT_READER_H__
|
||||
#define __GST_BIT_READER_H__
|
||||
|
||||
#include <gst/gst.h>
|
||||
#include <gst/base/base-prelude.h>
|
||||
|
||||
/* FIXME: inline functions */
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
#define GST_BIT_READER(reader) ((GstBitReader *) (reader))
|
||||
|
||||
/**
|
||||
* GstBitReader:
|
||||
* @data: (array length=size): Data from which the bit reader will
|
||||
* read
|
||||
* @size: Size of @data in bytes
|
||||
* @byte: Current byte position
|
||||
* @bit: Bit position in the current byte
|
||||
*
|
||||
* A bit reader instance.
|
||||
*/
|
||||
typedef struct {
|
||||
const guint8 *data;
|
||||
guint size;
|
||||
|
||||
guint byte; /* Byte position */
|
||||
guint bit; /* Bit position in the current byte */
|
||||
|
||||
/* < private > */
|
||||
gpointer _gst_reserved[GST_PADDING];
|
||||
} GstBitReader;
|
||||
|
||||
GST_BASE_API
|
||||
GstBitReader * gst_bit_reader_new (const guint8 *data, guint size) G_GNUC_MALLOC;
|
||||
|
||||
GST_BASE_API
|
||||
void gst_bit_reader_free (GstBitReader *reader);
|
||||
|
||||
GST_BASE_API
|
||||
void gst_bit_reader_init (GstBitReader *reader, const guint8 *data, guint size);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_bit_reader_set_pos (GstBitReader *reader, guint pos);
|
||||
|
||||
GST_BASE_API
|
||||
guint gst_bit_reader_get_pos (const GstBitReader *reader);
|
||||
|
||||
GST_BASE_API
|
||||
guint gst_bit_reader_get_remaining (const GstBitReader *reader);
|
||||
|
||||
GST_BASE_API
|
||||
guint gst_bit_reader_get_size (const GstBitReader *reader);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_bit_reader_skip (GstBitReader *reader, guint nbits);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_bit_reader_skip_to_byte (GstBitReader *reader);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_bit_reader_get_bits_uint8 (GstBitReader *reader, guint8 *val, guint nbits);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_bit_reader_get_bits_uint16 (GstBitReader *reader, guint16 *val, guint nbits);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_bit_reader_get_bits_uint32 (GstBitReader *reader, guint32 *val, guint nbits);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_bit_reader_get_bits_uint64 (GstBitReader *reader, guint64 *val, guint nbits);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_bit_reader_peek_bits_uint8 (const GstBitReader *reader, guint8 *val, guint nbits);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_bit_reader_peek_bits_uint16 (const GstBitReader *reader, guint16 *val, guint nbits);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_bit_reader_peek_bits_uint32 (const GstBitReader *reader, guint32 *val, guint nbits);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_bit_reader_peek_bits_uint64 (const GstBitReader *reader, guint64 *val, guint nbits);
|
||||
|
||||
/**
|
||||
* GST_BIT_READER_INIT:
|
||||
* @data: Data from which the #GstBitReader should read
|
||||
* @size: Size of @data in bytes
|
||||
*
|
||||
* A #GstBitReader must be initialized with this macro, before it can be
|
||||
* used. This macro can used be to initialize a variable, but it cannot
|
||||
* be assigned to a variable. In that case you have to use
|
||||
* gst_bit_reader_init().
|
||||
*/
|
||||
#define GST_BIT_READER_INIT(data, size) {data, size, 0, 0}
|
||||
|
||||
/* Unchecked variants */
|
||||
|
||||
static inline void
|
||||
gst_bit_reader_skip_unchecked (GstBitReader * reader, guint nbits)
|
||||
{
|
||||
reader->bit += nbits;
|
||||
reader->byte += reader->bit / 8;
|
||||
reader->bit = reader->bit % 8;
|
||||
}
|
||||
|
||||
static inline void
|
||||
gst_bit_reader_skip_to_byte_unchecked (GstBitReader * reader)
|
||||
{
|
||||
if (reader->bit) {
|
||||
reader->bit = 0;
|
||||
reader->byte++;
|
||||
}
|
||||
}
|
||||
|
||||
#define __GST_BIT_READER_READ_BITS_UNCHECKED(bits) \
|
||||
static inline guint##bits \
|
||||
gst_bit_reader_peek_bits_uint##bits##_unchecked (const GstBitReader *reader, guint nbits) \
|
||||
{ \
|
||||
guint##bits ret = 0; \
|
||||
const guint8 *data; \
|
||||
guint byte, bit; \
|
||||
\
|
||||
data = reader->data; \
|
||||
byte = reader->byte; \
|
||||
bit = reader->bit; \
|
||||
\
|
||||
while (nbits > 0) { \
|
||||
guint toread = MIN (nbits, 8 - bit); \
|
||||
\
|
||||
ret <<= toread; \
|
||||
ret |= (data[byte] & (0xff >> bit)) >> (8 - toread - bit); \
|
||||
\
|
||||
bit += toread; \
|
||||
if (bit >= 8) { \
|
||||
byte++; \
|
||||
bit = 0; \
|
||||
} \
|
||||
nbits -= toread; \
|
||||
} \
|
||||
\
|
||||
return ret; \
|
||||
} \
|
||||
\
|
||||
static inline guint##bits \
|
||||
gst_bit_reader_get_bits_uint##bits##_unchecked (GstBitReader *reader, guint nbits) \
|
||||
{ \
|
||||
guint##bits ret; \
|
||||
\
|
||||
ret = gst_bit_reader_peek_bits_uint##bits##_unchecked (reader, nbits); \
|
||||
\
|
||||
gst_bit_reader_skip_unchecked (reader, nbits); \
|
||||
\
|
||||
return ret; \
|
||||
}
|
||||
|
||||
__GST_BIT_READER_READ_BITS_UNCHECKED (8)
|
||||
__GST_BIT_READER_READ_BITS_UNCHECKED (16)
|
||||
__GST_BIT_READER_READ_BITS_UNCHECKED (32)
|
||||
__GST_BIT_READER_READ_BITS_UNCHECKED (64)
|
||||
|
||||
#undef __GST_BIT_READER_READ_BITS_UNCHECKED
|
||||
|
||||
/* unchecked variants -- do not use */
|
||||
|
||||
static inline guint
|
||||
_gst_bit_reader_get_size_unchecked (const GstBitReader * reader)
|
||||
{
|
||||
return reader->size * 8;
|
||||
}
|
||||
|
||||
static inline guint
|
||||
_gst_bit_reader_get_pos_unchecked (const GstBitReader * reader)
|
||||
{
|
||||
return reader->byte * 8 + reader->bit;
|
||||
}
|
||||
|
||||
static inline guint
|
||||
_gst_bit_reader_get_remaining_unchecked (const GstBitReader * reader)
|
||||
{
|
||||
return reader->size * 8 - (reader->byte * 8 + reader->bit);
|
||||
}
|
||||
|
||||
/* inlined variants -- do not use directly */
|
||||
static inline guint
|
||||
_gst_bit_reader_get_size_inline (const GstBitReader * reader)
|
||||
{
|
||||
g_return_val_if_fail (reader != NULL, 0);
|
||||
|
||||
return _gst_bit_reader_get_size_unchecked (reader);
|
||||
}
|
||||
|
||||
static inline guint
|
||||
_gst_bit_reader_get_pos_inline (const GstBitReader * reader)
|
||||
{
|
||||
g_return_val_if_fail (reader != NULL, 0);
|
||||
|
||||
return _gst_bit_reader_get_pos_unchecked (reader);
|
||||
}
|
||||
|
||||
static inline guint
|
||||
_gst_bit_reader_get_remaining_inline (const GstBitReader * reader)
|
||||
{
|
||||
g_return_val_if_fail (reader != NULL, 0);
|
||||
|
||||
return _gst_bit_reader_get_remaining_unchecked (reader);
|
||||
}
|
||||
|
||||
static inline gboolean
|
||||
_gst_bit_reader_skip_inline (GstBitReader * reader, guint nbits)
|
||||
{
|
||||
g_return_val_if_fail (reader != NULL, FALSE);
|
||||
|
||||
if (_gst_bit_reader_get_remaining_unchecked (reader) < nbits)
|
||||
return FALSE;
|
||||
|
||||
gst_bit_reader_skip_unchecked (reader, nbits);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static inline gboolean
|
||||
_gst_bit_reader_skip_to_byte_inline (GstBitReader * reader)
|
||||
{
|
||||
g_return_val_if_fail (reader != NULL, FALSE);
|
||||
|
||||
if (reader->byte > reader->size)
|
||||
return FALSE;
|
||||
|
||||
gst_bit_reader_skip_to_byte_unchecked (reader);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
#define __GST_BIT_READER_READ_BITS_INLINE(bits) \
|
||||
static inline gboolean \
|
||||
_gst_bit_reader_get_bits_uint##bits##_inline (GstBitReader *reader, guint##bits *val, guint nbits) \
|
||||
{ \
|
||||
g_return_val_if_fail (reader != NULL, FALSE); \
|
||||
g_return_val_if_fail (val != NULL, FALSE); \
|
||||
g_return_val_if_fail (nbits <= bits, FALSE); \
|
||||
\
|
||||
if (_gst_bit_reader_get_remaining_unchecked (reader) < nbits) \
|
||||
return FALSE; \
|
||||
\
|
||||
*val = gst_bit_reader_get_bits_uint##bits##_unchecked (reader, nbits); \
|
||||
return TRUE; \
|
||||
} \
|
||||
\
|
||||
static inline gboolean \
|
||||
_gst_bit_reader_peek_bits_uint##bits##_inline (const GstBitReader *reader, guint##bits *val, guint nbits) \
|
||||
{ \
|
||||
g_return_val_if_fail (reader != NULL, FALSE); \
|
||||
g_return_val_if_fail (val != NULL, FALSE); \
|
||||
g_return_val_if_fail (nbits <= bits, FALSE); \
|
||||
\
|
||||
if (_gst_bit_reader_get_remaining_unchecked (reader) < nbits) \
|
||||
return FALSE; \
|
||||
\
|
||||
*val = gst_bit_reader_peek_bits_uint##bits##_unchecked (reader, nbits); \
|
||||
return TRUE; \
|
||||
}
|
||||
|
||||
__GST_BIT_READER_READ_BITS_INLINE (8)
|
||||
__GST_BIT_READER_READ_BITS_INLINE (16)
|
||||
__GST_BIT_READER_READ_BITS_INLINE (32)
|
||||
__GST_BIT_READER_READ_BITS_INLINE (64)
|
||||
|
||||
#undef __GST_BIT_READER_READ_BITS_INLINE
|
||||
|
||||
#ifndef GST_BIT_READER_DISABLE_INLINES
|
||||
|
||||
#define gst_bit_reader_get_size(reader) \
|
||||
_gst_bit_reader_get_size_inline (reader)
|
||||
#define gst_bit_reader_get_pos(reader) \
|
||||
_gst_bit_reader_get_pos_inline (reader)
|
||||
#define gst_bit_reader_get_remaining(reader) \
|
||||
_gst_bit_reader_get_remaining_inline (reader)
|
||||
|
||||
/* we use defines here so we can add the G_LIKELY() */
|
||||
|
||||
#define gst_bit_reader_skip(reader, nbits)\
|
||||
G_LIKELY (_gst_bit_reader_skip_inline(reader, nbits))
|
||||
#define gst_bit_reader_skip_to_byte(reader)\
|
||||
G_LIKELY (_gst_bit_reader_skip_to_byte_inline(reader))
|
||||
|
||||
#define gst_bit_reader_get_bits_uint8(reader, val, nbits) \
|
||||
G_LIKELY (_gst_bit_reader_get_bits_uint8_inline (reader, val, nbits))
|
||||
#define gst_bit_reader_get_bits_uint16(reader, val, nbits) \
|
||||
G_LIKELY (_gst_bit_reader_get_bits_uint16_inline (reader, val, nbits))
|
||||
#define gst_bit_reader_get_bits_uint32(reader, val, nbits) \
|
||||
G_LIKELY (_gst_bit_reader_get_bits_uint32_inline (reader, val, nbits))
|
||||
#define gst_bit_reader_get_bits_uint64(reader, val, nbits) \
|
||||
G_LIKELY (_gst_bit_reader_get_bits_uint64_inline (reader, val, nbits))
|
||||
|
||||
#define gst_bit_reader_peek_bits_uint8(reader, val, nbits) \
|
||||
G_LIKELY (_gst_bit_reader_peek_bits_uint8_inline (reader, val, nbits))
|
||||
#define gst_bit_reader_peek_bits_uint16(reader, val, nbits) \
|
||||
G_LIKELY (_gst_bit_reader_peek_bits_uint16_inline (reader, val, nbits))
|
||||
#define gst_bit_reader_peek_bits_uint32(reader, val, nbits) \
|
||||
G_LIKELY (_gst_bit_reader_peek_bits_uint32_inline (reader, val, nbits))
|
||||
#define gst_bit_reader_peek_bits_uint64(reader, val, nbits) \
|
||||
G_LIKELY (_gst_bit_reader_peek_bits_uint64_inline (reader, val, nbits))
|
||||
#endif
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __GST_BIT_READER_H__ */
|
||||
@@ -0,0 +1,67 @@
|
||||
/* Stub for <gst/base/gstbitwriter.h>.
|
||||
*
|
||||
* The vendored nalutils.c uses GstBitWriter for NAL emulation-prevention
|
||||
* byte INSERTION during write-side (encoder) operations. The libva
|
||||
* backend never invokes those paths — we only PARSE NAL units, never
|
||||
* write them. The functions must still compile + link though, so we
|
||||
* stub them with abort() runtime guards: if any future code path
|
||||
* accidentally invokes a writer function, we fail-fast instead of
|
||||
* silently corrupting.
|
||||
*
|
||||
* Header surface mirrors upstream gstbitwriter.h minimally — enough
|
||||
* for nalutils.c to compile.
|
||||
*/
|
||||
#ifndef LIBVA_V4L2_REQUEST_FOURIER_GSTBITWRITER_STUB
|
||||
#define LIBVA_V4L2_REQUEST_FOURIER_GSTBITWRITER_STUB
|
||||
|
||||
#include "gst_compat.h"
|
||||
|
||||
typedef struct {
|
||||
guint8 *data;
|
||||
guint bit_size;
|
||||
guint bit_capacity;
|
||||
gboolean auto_grow;
|
||||
gboolean owned;
|
||||
} GstBitWriter;
|
||||
|
||||
static inline void
|
||||
gst_bit_writer_init(GstBitWriter *bw) { (void)bw; abort(); }
|
||||
static inline void
|
||||
gst_bit_writer_init_with_size(GstBitWriter *bw, guint size, gboolean fixed) {
|
||||
(void)bw; (void)size; (void)fixed; abort();
|
||||
}
|
||||
static inline void
|
||||
gst_bit_writer_reset(GstBitWriter *bw) { (void)bw; abort(); }
|
||||
static inline gboolean
|
||||
gst_bit_writer_put_bits_uint8(GstBitWriter *bw, guint8 value, guint nbits) {
|
||||
(void)bw; (void)value; (void)nbits; abort();
|
||||
}
|
||||
static inline gboolean
|
||||
gst_bit_writer_align_bytes(GstBitWriter *bw, guint8 trailing_bit) {
|
||||
(void)bw; (void)trailing_bit; abort();
|
||||
}
|
||||
static inline guint8 *
|
||||
gst_bit_writer_get_data(GstBitWriter *bw) { (void)bw; abort(); }
|
||||
static inline guint
|
||||
gst_bit_writer_get_size(const GstBitWriter *bw) { (void)bw; abort(); }
|
||||
static inline guint
|
||||
gst_bit_writer_reset_and_get_size(GstBitWriter *bw) { (void)bw; abort(); }
|
||||
static inline guint8 *
|
||||
gst_bit_writer_reset_and_get_data(GstBitWriter *bw) { (void)bw; abort(); }
|
||||
static inline gboolean
|
||||
gst_bit_writer_put_bits_uint16(GstBitWriter *bw, guint16 value, guint nbits) {
|
||||
(void)bw; (void)value; (void)nbits; abort();
|
||||
}
|
||||
static inline gboolean
|
||||
gst_bit_writer_put_bits_uint32(GstBitWriter *bw, guint32 value, guint nbits) {
|
||||
(void)bw; (void)value; (void)nbits; abort();
|
||||
}
|
||||
static inline gboolean
|
||||
gst_bit_writer_put_bytes(GstBitWriter *bw, const guint8 *data, guint nbytes) {
|
||||
(void)bw; (void)data; (void)nbytes; abort();
|
||||
}
|
||||
|
||||
#define GST_BIT_WRITER_BIT_SIZE(bw) ((bw)->bit_size)
|
||||
#define GST_BIT_WRITER_DATA(bw) ((bw)->data)
|
||||
|
||||
#endif
|
||||
File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,684 @@
|
||||
/* GStreamer byte reader
|
||||
*
|
||||
* Copyright (C) 2008 Sebastian Dröge <sebastian.droege@collabora.co.uk>.
|
||||
* Copyright (C) 2009 Tim-Philipp Müller <tim centricular net>
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Library General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2 of the License, or (at your option) any later version.
|
||||
*
|
||||
* This library is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Library General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Library General Public
|
||||
* License along with this library; if not, write to the
|
||||
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
|
||||
* Boston, MA 02110-1301, USA.
|
||||
*/
|
||||
|
||||
#ifndef __GST_BYTE_READER_H__
|
||||
#define __GST_BYTE_READER_H__
|
||||
|
||||
#include <gst/gst.h>
|
||||
#include <gst/base/base-prelude.h>
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
#define GST_BYTE_READER(reader) ((GstByteReader *) (reader))
|
||||
|
||||
/**
|
||||
* GstByteReader:
|
||||
* @data: (array length=size): Data from which the bit reader will
|
||||
* read
|
||||
* @size: Size of @data in bytes
|
||||
* @byte: Current byte position
|
||||
*
|
||||
* A byte reader instance.
|
||||
*/
|
||||
typedef struct {
|
||||
const guint8 *data;
|
||||
guint size;
|
||||
|
||||
guint byte; /* Byte position */
|
||||
|
||||
/* < private > */
|
||||
gpointer _gst_reserved[GST_PADDING];
|
||||
} GstByteReader;
|
||||
|
||||
GST_BASE_API
|
||||
GstByteReader * gst_byte_reader_new (const guint8 *data, guint size) G_GNUC_MALLOC;
|
||||
|
||||
GST_BASE_API
|
||||
void gst_byte_reader_free (GstByteReader *reader);
|
||||
|
||||
GST_BASE_API
|
||||
void gst_byte_reader_init (GstByteReader *reader, const guint8 *data, guint size);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_peek_sub_reader (GstByteReader * reader,
|
||||
GstByteReader * sub_reader,
|
||||
guint size);
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_get_sub_reader (GstByteReader * reader,
|
||||
GstByteReader * sub_reader,
|
||||
guint size);
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_set_pos (GstByteReader *reader, guint pos);
|
||||
|
||||
GST_BASE_API
|
||||
guint gst_byte_reader_get_pos (const GstByteReader *reader);
|
||||
|
||||
GST_BASE_API
|
||||
guint gst_byte_reader_get_remaining (const GstByteReader *reader);
|
||||
|
||||
GST_BASE_API
|
||||
guint gst_byte_reader_get_size (const GstByteReader *reader);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_skip (GstByteReader *reader, guint nbytes);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_get_uint8 (GstByteReader *reader, guint8 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_get_int8 (GstByteReader *reader, gint8 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_get_uint16_le (GstByteReader *reader, guint16 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_get_int16_le (GstByteReader *reader, gint16 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_get_uint16_be (GstByteReader *reader, guint16 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_get_int16_be (GstByteReader *reader, gint16 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_get_uint24_le (GstByteReader *reader, guint32 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_get_int24_le (GstByteReader *reader, gint32 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_get_uint24_be (GstByteReader *reader, guint32 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_get_int24_be (GstByteReader *reader, gint32 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_get_uint32_le (GstByteReader *reader, guint32 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_get_int32_le (GstByteReader *reader, gint32 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_get_uint32_be (GstByteReader *reader, guint32 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_get_int32_be (GstByteReader *reader, gint32 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_get_uint64_le (GstByteReader *reader, guint64 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_get_int64_le (GstByteReader *reader, gint64 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_get_uint64_be (GstByteReader *reader, guint64 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_get_int64_be (GstByteReader *reader, gint64 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_peek_uint8 (const GstByteReader *reader, guint8 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_peek_int8 (const GstByteReader *reader, gint8 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_peek_uint16_le (const GstByteReader *reader, guint16 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_peek_int16_le (const GstByteReader *reader, gint16 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_peek_uint16_be (const GstByteReader *reader, guint16 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_peek_int16_be (const GstByteReader *reader, gint16 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_peek_uint24_le (const GstByteReader *reader, guint32 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_peek_int24_le (const GstByteReader *reader, gint32 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_peek_uint24_be (const GstByteReader *reader, guint32 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_peek_int24_be (const GstByteReader *reader, gint32 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_peek_uint32_le (const GstByteReader *reader, guint32 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_peek_int32_le (const GstByteReader *reader, gint32 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_peek_uint32_be (const GstByteReader *reader, guint32 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_peek_int32_be (const GstByteReader *reader, gint32 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_peek_uint64_le (const GstByteReader *reader, guint64 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_peek_int64_le (const GstByteReader *reader, gint64 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_peek_uint64_be (const GstByteReader *reader, guint64 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_peek_int64_be (const GstByteReader *reader, gint64 *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_get_float32_le (GstByteReader *reader, gfloat *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_get_float32_be (GstByteReader *reader, gfloat *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_get_float64_le (GstByteReader *reader, gdouble *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_get_float64_be (GstByteReader *reader, gdouble *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_peek_float32_le (const GstByteReader *reader, gfloat *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_peek_float32_be (const GstByteReader *reader, gfloat *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_peek_float64_le (const GstByteReader *reader, gdouble *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_peek_float64_be (const GstByteReader *reader, gdouble *val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_dup_data (GstByteReader * reader, guint size, guint8 ** val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_get_data (GstByteReader * reader, guint size, const guint8 ** val);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_peek_data (const GstByteReader * reader, guint size, const guint8 ** val);
|
||||
|
||||
#define gst_byte_reader_dup_string(reader,str) \
|
||||
gst_byte_reader_dup_string_utf8(reader,str)
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_dup_string_utf8 (GstByteReader * reader, gchar ** str);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_dup_string_utf16 (GstByteReader * reader, guint16 ** str);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_dup_string_utf32 (GstByteReader * reader, guint32 ** str);
|
||||
|
||||
#define gst_byte_reader_skip_string(reader) \
|
||||
gst_byte_reader_skip_string_utf8(reader)
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_skip_string_utf8 (GstByteReader * reader);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_skip_string_utf16 (GstByteReader * reader);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_skip_string_utf32 (GstByteReader * reader);
|
||||
|
||||
#define gst_byte_reader_get_string(reader,str) \
|
||||
gst_byte_reader_get_string_utf8(reader,str)
|
||||
|
||||
#define gst_byte_reader_peek_string(reader,str) \
|
||||
gst_byte_reader_peek_string_utf8(reader,str)
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_get_string_utf8 (GstByteReader * reader, const gchar ** str);
|
||||
|
||||
GST_BASE_API
|
||||
gboolean gst_byte_reader_peek_string_utf8 (const GstByteReader * reader, const gchar ** str);
|
||||
|
||||
GST_BASE_API
|
||||
guint gst_byte_reader_masked_scan_uint32 (const GstByteReader * reader,
|
||||
guint32 mask,
|
||||
guint32 pattern,
|
||||
guint offset,
|
||||
guint size);
|
||||
GST_BASE_API
|
||||
guint gst_byte_reader_masked_scan_uint32_peek (const GstByteReader * reader,
|
||||
guint32 mask,
|
||||
guint32 pattern,
|
||||
guint offset,
|
||||
guint size,
|
||||
guint32 * value);
|
||||
|
||||
/**
|
||||
* GST_BYTE_READER_INIT:
|
||||
* @data: Data from which the #GstByteReader should read
|
||||
* @size: Size of @data in bytes
|
||||
*
|
||||
* A #GstByteReader must be initialized with this macro, before it can be
|
||||
* used. This macro can used be to initialize a variable, but it cannot
|
||||
* be assigned to a variable. In that case you have to use
|
||||
* gst_byte_reader_init().
|
||||
*/
|
||||
#define GST_BYTE_READER_INIT(data, size) {data, size, 0}
|
||||
|
||||
/* unchecked variants */
|
||||
static inline void
|
||||
gst_byte_reader_skip_unchecked (GstByteReader * reader, guint nbytes)
|
||||
{
|
||||
reader->byte += nbytes;
|
||||
}
|
||||
|
||||
#define __GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(bits,type,lower,upper,adj) \
|
||||
\
|
||||
static inline type \
|
||||
gst_byte_reader_peek_##lower##_unchecked (const GstByteReader * reader) \
|
||||
{ \
|
||||
type val = (type) GST_READ_##upper (reader->data + reader->byte); \
|
||||
adj \
|
||||
return val; \
|
||||
} \
|
||||
\
|
||||
static inline type \
|
||||
gst_byte_reader_get_##lower##_unchecked (GstByteReader * reader) \
|
||||
{ \
|
||||
type val = gst_byte_reader_peek_##lower##_unchecked (reader); \
|
||||
reader->byte += bits / 8; \
|
||||
return val; \
|
||||
}
|
||||
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(8,guint8,uint8,UINT8,/* */)
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(8,gint8,int8,UINT8,/* */)
|
||||
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(16,guint16,uint16_le,UINT16_LE,/* */)
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(16,guint16,uint16_be,UINT16_BE,/* */)
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(16,gint16,int16_le,UINT16_LE,/* */)
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(16,gint16,int16_be,UINT16_BE,/* */)
|
||||
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(32,guint32,uint32_le,UINT32_LE,/* */)
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(32,guint32,uint32_be,UINT32_BE,/* */)
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(32,gint32,int32_le,UINT32_LE,/* */)
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(32,gint32,int32_be,UINT32_BE,/* */)
|
||||
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(24,guint32,uint24_le,UINT24_LE,/* */)
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(24,guint32,uint24_be,UINT24_BE,/* */)
|
||||
|
||||
/* fix up the sign for 24-bit signed ints stored in 32-bit signed ints */
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(24,gint32,int24_le,UINT24_LE,
|
||||
if (val & 0x00800000) val |= 0xff000000;)
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(24,gint32,int24_be,UINT24_BE,
|
||||
if (val & 0x00800000) val |= 0xff000000;)
|
||||
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(64,guint64,uint64_le,UINT64_LE,/* */)
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(64,guint64,uint64_be,UINT64_BE,/* */)
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(64,gint64,int64_le,UINT64_LE,/* */)
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(64,gint64,int64_be,UINT64_BE,/* */)
|
||||
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(32,gfloat,float32_le,FLOAT_LE,/* */)
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(32,gfloat,float32_be,FLOAT_BE,/* */)
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(64,gdouble,float64_le,DOUBLE_LE,/* */)
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_UNCHECKED(64,gdouble,float64_be,DOUBLE_BE,/* */)
|
||||
|
||||
#undef __GET_PEEK_BITS_UNCHECKED
|
||||
|
||||
static inline const guint8 *
|
||||
gst_byte_reader_peek_data_unchecked (const GstByteReader * reader)
|
||||
{
|
||||
return (const guint8 *) (reader->data + reader->byte);
|
||||
}
|
||||
|
||||
static inline const guint8 *
|
||||
gst_byte_reader_get_data_unchecked (GstByteReader * reader, guint size)
|
||||
{
|
||||
const guint8 *data;
|
||||
|
||||
data = gst_byte_reader_peek_data_unchecked (reader);
|
||||
gst_byte_reader_skip_unchecked (reader, size);
|
||||
return data;
|
||||
}
|
||||
|
||||
static inline guint8 *
|
||||
gst_byte_reader_dup_data_unchecked (GstByteReader * reader, guint size)
|
||||
{
|
||||
gconstpointer data = gst_byte_reader_get_data_unchecked (reader, size);
|
||||
guint8 *dup_data = (guint8 *) g_malloc (size);
|
||||
|
||||
memcpy (dup_data, data, size);
|
||||
return dup_data;
|
||||
}
|
||||
|
||||
/* Unchecked variants that should not be used */
|
||||
static inline guint
|
||||
_gst_byte_reader_get_pos_unchecked (const GstByteReader * reader)
|
||||
{
|
||||
return reader->byte;
|
||||
}
|
||||
|
||||
static inline guint
|
||||
_gst_byte_reader_get_remaining_unchecked (const GstByteReader * reader)
|
||||
{
|
||||
return reader->size - reader->byte;
|
||||
}
|
||||
|
||||
static inline guint
|
||||
_gst_byte_reader_get_size_unchecked (const GstByteReader * reader)
|
||||
{
|
||||
return reader->size;
|
||||
}
|
||||
|
||||
/* inlined variants (do not use directly) */
|
||||
|
||||
static inline guint
|
||||
_gst_byte_reader_get_remaining_inline (const GstByteReader * reader)
|
||||
{
|
||||
g_return_val_if_fail (reader != NULL, 0);
|
||||
|
||||
return _gst_byte_reader_get_remaining_unchecked (reader);
|
||||
}
|
||||
|
||||
static inline guint
|
||||
_gst_byte_reader_get_size_inline (const GstByteReader * reader)
|
||||
{
|
||||
g_return_val_if_fail (reader != NULL, 0);
|
||||
|
||||
return _gst_byte_reader_get_size_unchecked (reader);
|
||||
}
|
||||
|
||||
#define __GST_BYTE_READER_GET_PEEK_BITS_INLINE(bits,type,name) \
|
||||
\
|
||||
static inline gboolean \
|
||||
_gst_byte_reader_peek_##name##_inline (const GstByteReader * reader, type * val) \
|
||||
{ \
|
||||
g_return_val_if_fail (reader != NULL, FALSE); \
|
||||
g_return_val_if_fail (val != NULL, FALSE); \
|
||||
\
|
||||
if (_gst_byte_reader_get_remaining_unchecked (reader) < (bits / 8)) \
|
||||
return FALSE; \
|
||||
\
|
||||
*val = gst_byte_reader_peek_##name##_unchecked (reader); \
|
||||
return TRUE; \
|
||||
} \
|
||||
\
|
||||
static inline gboolean \
|
||||
_gst_byte_reader_get_##name##_inline (GstByteReader * reader, type * val) \
|
||||
{ \
|
||||
g_return_val_if_fail (reader != NULL, FALSE); \
|
||||
g_return_val_if_fail (val != NULL, FALSE); \
|
||||
\
|
||||
if (_gst_byte_reader_get_remaining_unchecked (reader) < (bits / 8)) \
|
||||
return FALSE; \
|
||||
\
|
||||
*val = gst_byte_reader_get_##name##_unchecked (reader); \
|
||||
return TRUE; \
|
||||
}
|
||||
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_INLINE(8,guint8,uint8)
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_INLINE(8,gint8,int8)
|
||||
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_INLINE(16,guint16,uint16_le)
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_INLINE(16,guint16,uint16_be)
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_INLINE(16,gint16,int16_le)
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_INLINE(16,gint16,int16_be)
|
||||
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_INLINE(32,guint32,uint32_le)
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_INLINE(32,guint32,uint32_be)
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_INLINE(32,gint32,int32_le)
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_INLINE(32,gint32,int32_be)
|
||||
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_INLINE(24,guint32,uint24_le)
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_INLINE(24,guint32,uint24_be)
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_INLINE(24,gint32,int24_le)
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_INLINE(24,gint32,int24_be)
|
||||
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_INLINE(64,guint64,uint64_le)
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_INLINE(64,guint64,uint64_be)
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_INLINE(64,gint64,int64_le)
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_INLINE(64,gint64,int64_be)
|
||||
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_INLINE(32,gfloat,float32_le)
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_INLINE(32,gfloat,float32_be)
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_INLINE(64,gdouble,float64_le)
|
||||
__GST_BYTE_READER_GET_PEEK_BITS_INLINE(64,gdouble,float64_be)
|
||||
|
||||
#undef __GST_BYTE_READER_GET_PEEK_BITS_INLINE
|
||||
|
||||
#ifndef GST_BYTE_READER_DISABLE_INLINES
|
||||
|
||||
#define gst_byte_reader_init(reader,data,size) \
|
||||
_gst_byte_reader_init_inline(reader,data,size)
|
||||
|
||||
#define gst_byte_reader_get_remaining(reader) \
|
||||
_gst_byte_reader_get_remaining_inline(reader)
|
||||
|
||||
#define gst_byte_reader_get_size(reader) \
|
||||
_gst_byte_reader_get_size_inline(reader)
|
||||
|
||||
#define gst_byte_reader_get_pos(reader) \
|
||||
_gst_byte_reader_get_pos_inline(reader)
|
||||
|
||||
/* we use defines here so we can add the G_LIKELY() */
|
||||
#define gst_byte_reader_get_uint8(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_get_uint8_inline(reader,val))
|
||||
#define gst_byte_reader_get_int8(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_get_int8_inline(reader,val))
|
||||
#define gst_byte_reader_get_uint16_le(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_get_uint16_le_inline(reader,val))
|
||||
#define gst_byte_reader_get_int16_le(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_get_int16_le_inline(reader,val))
|
||||
#define gst_byte_reader_get_uint16_be(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_get_uint16_be_inline(reader,val))
|
||||
#define gst_byte_reader_get_int16_be(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_get_int16_be_inline(reader,val))
|
||||
#define gst_byte_reader_get_uint24_le(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_get_uint24_le_inline(reader,val))
|
||||
#define gst_byte_reader_get_int24_le(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_get_int24_le_inline(reader,val))
|
||||
#define gst_byte_reader_get_uint24_be(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_get_uint24_be_inline(reader,val))
|
||||
#define gst_byte_reader_get_int24_be(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_get_int24_be_inline(reader,val))
|
||||
#define gst_byte_reader_get_uint32_le(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_get_uint32_le_inline(reader,val))
|
||||
#define gst_byte_reader_get_int32_le(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_get_int32_le_inline(reader,val))
|
||||
#define gst_byte_reader_get_uint32_be(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_get_uint32_be_inline(reader,val))
|
||||
#define gst_byte_reader_get_int32_be(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_get_int32_be_inline(reader,val))
|
||||
#define gst_byte_reader_get_uint64_le(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_get_uint64_le_inline(reader,val))
|
||||
#define gst_byte_reader_get_int64_le(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_get_int64_le_inline(reader,val))
|
||||
#define gst_byte_reader_get_uint64_be(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_get_uint64_be_inline(reader,val))
|
||||
#define gst_byte_reader_get_int64_be(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_get_int64_be_inline(reader,val))
|
||||
|
||||
#define gst_byte_reader_peek_uint8(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_peek_uint8_inline(reader,val))
|
||||
#define gst_byte_reader_peek_int8(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_peek_int8_inline(reader,val))
|
||||
#define gst_byte_reader_peek_uint16_le(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_peek_uint16_le_inline(reader,val))
|
||||
#define gst_byte_reader_peek_int16_le(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_peek_int16_le_inline(reader,val))
|
||||
#define gst_byte_reader_peek_uint16_be(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_peek_uint16_be_inline(reader,val))
|
||||
#define gst_byte_reader_peek_int16_be(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_peek_int16_be_inline(reader,val))
|
||||
#define gst_byte_reader_peek_uint24_le(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_peek_uint24_le_inline(reader,val))
|
||||
#define gst_byte_reader_peek_int24_le(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_peek_int24_le_inline(reader,val))
|
||||
#define gst_byte_reader_peek_uint24_be(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_peek_uint24_be_inline(reader,val))
|
||||
#define gst_byte_reader_peek_int24_be(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_peek_int24_be_inline(reader,val))
|
||||
#define gst_byte_reader_peek_uint32_le(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_peek_uint32_le_inline(reader,val))
|
||||
#define gst_byte_reader_peek_int32_le(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_peek_int32_le_inline(reader,val))
|
||||
#define gst_byte_reader_peek_uint32_be(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_peek_uint32_be_inline(reader,val))
|
||||
#define gst_byte_reader_peek_int32_be(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_peek_int32_be_inline(reader,val))
|
||||
#define gst_byte_reader_peek_uint64_le(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_peek_uint64_le_inline(reader,val))
|
||||
#define gst_byte_reader_peek_int64_le(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_peek_int64_le_inline(reader,val))
|
||||
#define gst_byte_reader_peek_uint64_be(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_peek_uint64_be_inline(reader,val))
|
||||
#define gst_byte_reader_peek_int64_be(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_peek_int64_be_inline(reader,val))
|
||||
|
||||
#define gst_byte_reader_get_float32_le(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_get_float32_le_inline(reader,val))
|
||||
#define gst_byte_reader_get_float32_be(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_get_float32_be_inline(reader,val))
|
||||
#define gst_byte_reader_get_float64_le(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_get_float64_le_inline(reader,val))
|
||||
#define gst_byte_reader_get_float64_be(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_get_float64_be_inline(reader,val))
|
||||
#define gst_byte_reader_peek_float32_le(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_peek_float32_le_inline(reader,val))
|
||||
#define gst_byte_reader_peek_float32_be(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_peek_float32_be_inline(reader,val))
|
||||
#define gst_byte_reader_peek_float64_le(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_peek_float64_le_inline(reader,val))
|
||||
#define gst_byte_reader_peek_float64_be(reader,val) \
|
||||
G_LIKELY(_gst_byte_reader_peek_float64_be_inline(reader,val))
|
||||
|
||||
#endif /* GST_BYTE_READER_DISABLE_INLINES */
|
||||
|
||||
static inline void
|
||||
_gst_byte_reader_init_inline (GstByteReader * reader, const guint8 * data, guint size)
|
||||
{
|
||||
g_return_if_fail (reader != NULL);
|
||||
|
||||
reader->data = data;
|
||||
reader->size = size;
|
||||
reader->byte = 0;
|
||||
}
|
||||
|
||||
static inline gboolean
|
||||
_gst_byte_reader_peek_sub_reader_inline (GstByteReader * reader,
|
||||
GstByteReader * sub_reader, guint size)
|
||||
{
|
||||
g_return_val_if_fail (reader != NULL, FALSE);
|
||||
g_return_val_if_fail (sub_reader != NULL, FALSE);
|
||||
|
||||
if (_gst_byte_reader_get_remaining_unchecked (reader) < size)
|
||||
return FALSE;
|
||||
|
||||
sub_reader->data = reader->data + reader->byte;
|
||||
sub_reader->byte = 0;
|
||||
sub_reader->size = size;
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static inline gboolean
|
||||
_gst_byte_reader_get_sub_reader_inline (GstByteReader * reader,
|
||||
GstByteReader * sub_reader, guint size)
|
||||
{
|
||||
if (!_gst_byte_reader_peek_sub_reader_inline (reader, sub_reader, size))
|
||||
return FALSE;
|
||||
gst_byte_reader_skip_unchecked (reader, size);
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static inline gboolean
|
||||
_gst_byte_reader_dup_data_inline (GstByteReader * reader, guint size, guint8 ** val)
|
||||
{
|
||||
g_return_val_if_fail (reader != NULL, FALSE);
|
||||
g_return_val_if_fail (val != NULL, FALSE);
|
||||
|
||||
if (G_UNLIKELY (size > reader->size || _gst_byte_reader_get_remaining_unchecked (reader) < size))
|
||||
return FALSE;
|
||||
|
||||
*val = gst_byte_reader_dup_data_unchecked (reader, size);
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static inline gboolean
|
||||
_gst_byte_reader_get_data_inline (GstByteReader * reader, guint size, const guint8 ** val)
|
||||
{
|
||||
g_return_val_if_fail (reader != NULL, FALSE);
|
||||
g_return_val_if_fail (val != NULL, FALSE);
|
||||
|
||||
if (G_UNLIKELY (size > reader->size || _gst_byte_reader_get_remaining_unchecked (reader) < size))
|
||||
return FALSE;
|
||||
|
||||
*val = gst_byte_reader_get_data_unchecked (reader, size);
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static inline gboolean
|
||||
_gst_byte_reader_peek_data_inline (const GstByteReader * reader, guint size, const guint8 ** val)
|
||||
{
|
||||
g_return_val_if_fail (reader != NULL, FALSE);
|
||||
g_return_val_if_fail (val != NULL, FALSE);
|
||||
|
||||
if (G_UNLIKELY (size > reader->size || _gst_byte_reader_get_remaining_unchecked (reader) < size))
|
||||
return FALSE;
|
||||
|
||||
*val = gst_byte_reader_peek_data_unchecked (reader);
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static inline guint
|
||||
_gst_byte_reader_get_pos_inline (const GstByteReader * reader)
|
||||
{
|
||||
g_return_val_if_fail (reader != NULL, 0);
|
||||
|
||||
return _gst_byte_reader_get_pos_unchecked (reader);
|
||||
}
|
||||
|
||||
static inline gboolean
|
||||
_gst_byte_reader_skip_inline (GstByteReader * reader, guint nbytes)
|
||||
{
|
||||
g_return_val_if_fail (reader != NULL, FALSE);
|
||||
|
||||
if (G_UNLIKELY (_gst_byte_reader_get_remaining_unchecked (reader) < nbytes))
|
||||
return FALSE;
|
||||
|
||||
reader->byte += nbytes;
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
#ifndef GST_BYTE_READER_DISABLE_INLINES
|
||||
|
||||
#define gst_byte_reader_dup_data(reader,size,val) \
|
||||
G_LIKELY(_gst_byte_reader_dup_data_inline(reader,size,val))
|
||||
#define gst_byte_reader_get_data(reader,size,val) \
|
||||
G_LIKELY(_gst_byte_reader_get_data_inline(reader,size,val))
|
||||
#define gst_byte_reader_peek_data(reader,size,val) \
|
||||
G_LIKELY(_gst_byte_reader_peek_data_inline(reader,size,val))
|
||||
#define gst_byte_reader_skip(reader,nbytes) \
|
||||
G_LIKELY(_gst_byte_reader_skip_inline(reader,nbytes))
|
||||
|
||||
#endif /* GST_BYTE_READER_DISABLE_INLINES */
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __GST_BYTE_READER_H__ */
|
||||
@@ -0,0 +1,9 @@
|
||||
/* Stub for <gst/codecparsers/codecparsers-prelude.h>.
|
||||
* Same shape as base-prelude.h — drop the GObject boilerplate + define
|
||||
* the GstCodecParsersAPI macro to nothing.
|
||||
*/
|
||||
#ifndef LIBVA_V4L2_REQUEST_FOURIER_CODECPARSERS_PRELUDE_STUB
|
||||
#define LIBVA_V4L2_REQUEST_FOURIER_CODECPARSERS_PRELUDE_STUB
|
||||
#include "gst_compat.h"
|
||||
#define GST_CODEC_PARSERS_API
|
||||
#endif
|
||||
File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,545 @@
|
||||
/* Gstreamer
|
||||
* Copyright (C) <2011> Intel Corporation
|
||||
* Copyright (C) <2011> Collabora Ltd.
|
||||
* Copyright (C) <2011> Thibault Saunier <thibault.saunier@collabora.com>
|
||||
*
|
||||
* Some bits C-c,C-v'ed and s/4/3 from h264parse and videoparsers/h264parse.c:
|
||||
* Copyright (C) <2010> Mark Nauwelaerts <mark.nauwelaerts@collabora.co.uk>
|
||||
* Copyright (C) <2010> Collabora Multimedia
|
||||
* Copyright (C) <2010> Nokia Corporation
|
||||
*
|
||||
* (C) 2005 Michal Benes <michal.benes@itonis.tv>
|
||||
* (C) 2008 Wim Taymans <wim.taymans@gmail.com>
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Library General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2 of the License, or (at your option) any later version.
|
||||
*
|
||||
* This library is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Library General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Library General Public
|
||||
* License along with this library; if not, write to the
|
||||
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
|
||||
* Boston, MA 02110-1301, USA.
|
||||
*/
|
||||
|
||||
/*
|
||||
* Common code for NAL parsing from h264 and h265 parsers.
|
||||
*/
|
||||
|
||||
#ifdef HAVE_CONFIG_H
|
||||
# include "config.h"
|
||||
#endif
|
||||
|
||||
#include "nalutils.h"
|
||||
|
||||
/****** Nal parser ******/
|
||||
|
||||
void
|
||||
nal_reader_init (NalReader * nr, const guint8 * data, guint size)
|
||||
{
|
||||
nr->data = data;
|
||||
nr->size = size;
|
||||
nr->n_epb = 0;
|
||||
|
||||
nr->byte = 0;
|
||||
nr->bits_in_cache = 0;
|
||||
/* fill with something other than 0 to detect emulation prevention bytes */
|
||||
nr->first_byte = 0xff;
|
||||
nr->epb_cache = 0xff;
|
||||
nr->cache = 0xff;
|
||||
}
|
||||
|
||||
gboolean
|
||||
nal_reader_read (NalReader * nr, guint nbits)
|
||||
{
|
||||
if (G_UNLIKELY (nr->byte * 8 + (nbits - nr->bits_in_cache) > nr->size * 8)) {
|
||||
GST_DEBUG ("Can not read %u bits, bits in cache %u, Byte * 8 %u, size in "
|
||||
"bits %u", nbits, nr->bits_in_cache, nr->byte * 8, nr->size * 8);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
while (nr->bits_in_cache < nbits) {
|
||||
guint8 byte;
|
||||
|
||||
next_byte:
|
||||
if (G_UNLIKELY (nr->byte >= nr->size))
|
||||
return FALSE;
|
||||
|
||||
byte = nr->data[nr->byte++];
|
||||
nr->epb_cache = (nr->epb_cache << 8) | byte;
|
||||
|
||||
/* check if the byte is a emulation_prevention_three_byte */
|
||||
if ((nr->epb_cache & 0xffffff) == 0x3) {
|
||||
nr->n_epb++;
|
||||
goto next_byte;
|
||||
}
|
||||
nr->cache = (nr->cache << 8) | nr->first_byte;
|
||||
nr->first_byte = byte;
|
||||
nr->bits_in_cache += 8;
|
||||
}
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
/* Skips the specified amount of bits. This is only suitable to a
|
||||
cacheable number of bits */
|
||||
gboolean
|
||||
nal_reader_skip (NalReader * nr, guint nbits)
|
||||
{
|
||||
g_assert (nbits <= 8 * sizeof (nr->cache));
|
||||
|
||||
if (G_UNLIKELY (!nal_reader_read (nr, nbits)))
|
||||
return FALSE;
|
||||
|
||||
nr->bits_in_cache -= nbits;
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
/* Generic version to skip any number of bits */
|
||||
gboolean
|
||||
nal_reader_skip_long (NalReader * nr, guint nbits)
|
||||
{
|
||||
/* Leave out enough bits in the cache once we are finished */
|
||||
const guint skip_size = 4 * sizeof (nr->cache);
|
||||
guint remaining = nbits;
|
||||
|
||||
nbits %= skip_size;
|
||||
while (remaining > 0) {
|
||||
if (!nal_reader_skip (nr, nbits))
|
||||
return FALSE;
|
||||
remaining -= nbits;
|
||||
nbits = skip_size;
|
||||
}
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
guint
|
||||
nal_reader_get_pos (const NalReader * nr)
|
||||
{
|
||||
return nr->byte * 8 - nr->bits_in_cache;
|
||||
}
|
||||
|
||||
guint
|
||||
nal_reader_get_remaining (const NalReader * nr)
|
||||
{
|
||||
return (nr->size - nr->byte) * 8 + nr->bits_in_cache;
|
||||
}
|
||||
|
||||
guint
|
||||
nal_reader_get_epb_count (const NalReader * nr)
|
||||
{
|
||||
return nr->n_epb;
|
||||
}
|
||||
|
||||
#define NAL_READER_READ_BITS(bits) \
|
||||
gboolean \
|
||||
nal_reader_get_bits_uint##bits (NalReader *nr, guint##bits *val, guint nbits) \
|
||||
{ \
|
||||
guint shift; \
|
||||
\
|
||||
if (!nal_reader_read (nr, nbits)) \
|
||||
return FALSE; \
|
||||
\
|
||||
/* bring the required bits down and truncate */ \
|
||||
shift = nr->bits_in_cache - nbits; \
|
||||
*val = nr->first_byte >> shift; \
|
||||
\
|
||||
*val |= nr->cache << (8 - shift); \
|
||||
/* mask out required bits */ \
|
||||
if (nbits < bits) \
|
||||
*val &= ((guint##bits)1 << nbits) - 1; \
|
||||
\
|
||||
nr->bits_in_cache = shift; \
|
||||
\
|
||||
return TRUE; \
|
||||
} \
|
||||
|
||||
NAL_READER_READ_BITS (8);
|
||||
NAL_READER_READ_BITS (16);
|
||||
NAL_READER_READ_BITS (32);
|
||||
|
||||
#define NAL_READER_PEEK_BITS(bits) \
|
||||
gboolean \
|
||||
nal_reader_peek_bits_uint##bits (const NalReader *nr, guint##bits *val, guint nbits) \
|
||||
{ \
|
||||
NalReader tmp; \
|
||||
\
|
||||
tmp = *nr; \
|
||||
return nal_reader_get_bits_uint##bits (&tmp, val, nbits); \
|
||||
}
|
||||
|
||||
NAL_READER_PEEK_BITS (8);
|
||||
|
||||
gboolean
|
||||
nal_reader_get_ue (NalReader * nr, guint32 * val)
|
||||
{
|
||||
guint i = 0;
|
||||
guint8 bit;
|
||||
guint32 value;
|
||||
|
||||
if (G_UNLIKELY (!nal_reader_get_bits_uint8 (nr, &bit, 1)))
|
||||
return FALSE;
|
||||
|
||||
while (bit == 0) {
|
||||
i++;
|
||||
if (G_UNLIKELY (!nal_reader_get_bits_uint8 (nr, &bit, 1)))
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (G_UNLIKELY (i > 31))
|
||||
return FALSE;
|
||||
|
||||
if (G_UNLIKELY (!nal_reader_get_bits_uint32 (nr, &value, i)))
|
||||
return FALSE;
|
||||
|
||||
*val = (1 << i) - 1 + value;
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
gboolean
|
||||
nal_reader_get_se (NalReader * nr, gint32 * val)
|
||||
{
|
||||
guint32 value;
|
||||
|
||||
if (G_UNLIKELY (!nal_reader_get_ue (nr, &value)))
|
||||
return FALSE;
|
||||
|
||||
if (value % 2)
|
||||
*val = (value / 2) + 1;
|
||||
else
|
||||
*val = -(value / 2);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
gboolean
|
||||
nal_reader_is_byte_aligned (NalReader * nr)
|
||||
{
|
||||
if (nr->bits_in_cache != 0)
|
||||
return FALSE;
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
gboolean
|
||||
nal_reader_has_more_data (NalReader * nr)
|
||||
{
|
||||
NalReader nr_tmp;
|
||||
guint remaining, nbits;
|
||||
guint8 rbsp_stop_one_bit, zero_bits;
|
||||
|
||||
remaining = nal_reader_get_remaining (nr);
|
||||
if (remaining == 0)
|
||||
return FALSE;
|
||||
|
||||
nr_tmp = *nr;
|
||||
nr = &nr_tmp;
|
||||
|
||||
/* The spec defines that more_rbsp_data() searches for the last bit
|
||||
equal to 1, and that it is the rbsp_stop_one_bit. Subsequent bits
|
||||
until byte boundary is reached shall be zero.
|
||||
|
||||
This means that more_rbsp_data() is FALSE if the next bit is 1
|
||||
and the remaining bits until byte boundary are zero. One way to
|
||||
be sure that this bit was the very last one, is that every other
|
||||
bit after we reached byte boundary are also set to zero.
|
||||
Otherwise, if the next bit is 0 or if there are non-zero bits
|
||||
afterwards, then then we have more_rbsp_data() */
|
||||
if (!nal_reader_get_bits_uint8 (nr, &rbsp_stop_one_bit, 1))
|
||||
return FALSE;
|
||||
if (!rbsp_stop_one_bit)
|
||||
return TRUE;
|
||||
|
||||
nbits = --remaining % 8;
|
||||
while (remaining > 0) {
|
||||
if (!nal_reader_get_bits_uint8 (nr, &zero_bits, nbits))
|
||||
return FALSE;
|
||||
if (zero_bits != 0)
|
||||
return TRUE;
|
||||
remaining -= nbits;
|
||||
nbits = 8;
|
||||
}
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
/*********** end of nal parser ***************/
|
||||
|
||||
gint
|
||||
scan_for_start_codes (const guint8 * data, guint size)
|
||||
{
|
||||
GstByteReader br;
|
||||
gst_byte_reader_init (&br, data, size);
|
||||
|
||||
/* NALU not empty, so we can at least expect 1 (even 2) bytes following sc */
|
||||
return gst_byte_reader_masked_scan_uint32 (&br, 0xffffff00, 0x00000100,
|
||||
0, size);
|
||||
}
|
||||
|
||||
void
|
||||
nal_writer_init (NalWriter * nw, guint nal_prefix_size, gboolean packetized)
|
||||
{
|
||||
g_return_if_fail (nw != NULL);
|
||||
g_return_if_fail ((packetized && nal_prefix_size > 1 && nal_prefix_size < 5)
|
||||
|| (!packetized && (nal_prefix_size == 3 || nal_prefix_size == 4)));
|
||||
|
||||
gst_bit_writer_init (&nw->bw);
|
||||
nw->nal_prefix_size = nal_prefix_size;
|
||||
nw->packetized = packetized;
|
||||
}
|
||||
|
||||
void
|
||||
nal_writer_reset (NalWriter * nw)
|
||||
{
|
||||
g_return_if_fail (nw != NULL);
|
||||
|
||||
gst_bit_writer_reset (&nw->bw);
|
||||
memset (nw, 0, sizeof (NalWriter));
|
||||
}
|
||||
|
||||
gboolean
|
||||
nal_writer_do_rbsp_trailing_bits (NalWriter * nw)
|
||||
{
|
||||
g_return_val_if_fail (nw != NULL, FALSE);
|
||||
|
||||
if (!gst_bit_writer_put_bits_uint8 (&nw->bw, 1, 1)) {
|
||||
GST_WARNING ("Cannot put trailing bits");
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (!gst_bit_writer_align_bytes (&nw->bw, 0)) {
|
||||
GST_WARNING ("Cannot put align bits");
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static gpointer
|
||||
nal_writer_create_nal_data (NalWriter * nw, guint32 * ret_size)
|
||||
{
|
||||
GstBitWriter bw;
|
||||
gint i;
|
||||
guint8 *src, *dst;
|
||||
gsize size;
|
||||
gpointer data;
|
||||
|
||||
/* scan to put emulation_prevention_three_byte */
|
||||
size = GST_BIT_WRITER_BIT_SIZE (&nw->bw) >> 3;
|
||||
src = GST_BIT_WRITER_DATA (&nw->bw);
|
||||
|
||||
gst_bit_writer_init_with_size (&bw, size + nw->nal_prefix_size, FALSE);
|
||||
for (i = 0; i < nw->nal_prefix_size - 1; i++)
|
||||
gst_bit_writer_put_bits_uint8 (&bw, 0, 8);
|
||||
gst_bit_writer_put_bits_uint8 (&bw, 1, 8);
|
||||
|
||||
for (i = 0; i < size; i++) {
|
||||
guint pos = (GST_BIT_WRITER_BIT_SIZE (&bw) >> 3);
|
||||
dst = GST_BIT_WRITER_DATA (&bw);
|
||||
if (pos >= nw->nal_prefix_size + 2 &&
|
||||
dst[pos - 2] == 0 && dst[pos - 1] == 0 && src[i] <= 0x3) {
|
||||
gst_bit_writer_put_bits_uint8 (&bw, 0x3, 8);
|
||||
}
|
||||
|
||||
gst_bit_writer_put_bits_uint8 (&bw, src[i], 8);
|
||||
}
|
||||
|
||||
*ret_size = bw.bit_size >> 3;
|
||||
data = gst_bit_writer_reset_and_get_data (&bw);
|
||||
|
||||
if (nw->packetized) {
|
||||
size = *ret_size - nw->nal_prefix_size;
|
||||
|
||||
switch (nw->nal_prefix_size) {
|
||||
case 1:
|
||||
GST_WRITE_UINT8 (data, size);
|
||||
break;
|
||||
case 2:
|
||||
GST_WRITE_UINT16_BE (data, size);
|
||||
break;
|
||||
case 3:
|
||||
GST_WRITE_UINT24_BE (data, size);
|
||||
break;
|
||||
case 4:
|
||||
GST_WRITE_UINT32_BE (data, size);
|
||||
break;
|
||||
default:
|
||||
g_assert_not_reached ();
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
return data;
|
||||
}
|
||||
|
||||
GstMemory *
|
||||
nal_writer_reset_and_get_memory (NalWriter * nw)
|
||||
{
|
||||
guint32 size = 0;
|
||||
GstMemory *ret = NULL;
|
||||
gpointer data;
|
||||
|
||||
g_return_val_if_fail (nw != NULL, NULL);
|
||||
|
||||
if ((GST_BIT_WRITER_BIT_SIZE (&nw->bw) >> 3) == 0) {
|
||||
GST_WARNING ("No written byte");
|
||||
goto done;
|
||||
}
|
||||
|
||||
if ((GST_BIT_WRITER_BIT_SIZE (&nw->bw) & 0x7) != 0) {
|
||||
GST_WARNING ("Written stream is not byte aligned");
|
||||
if (!nal_writer_do_rbsp_trailing_bits (nw))
|
||||
goto done;
|
||||
}
|
||||
|
||||
data = nal_writer_create_nal_data (nw, &size);
|
||||
if (!data) {
|
||||
GST_WARNING ("Failed to create nal data");
|
||||
goto done;
|
||||
}
|
||||
|
||||
ret = gst_memory_new_wrapped (0, data, size, 0, size, data, g_free);
|
||||
|
||||
done:
|
||||
gst_bit_writer_reset (&nw->bw);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
guint8 *
|
||||
nal_writer_reset_and_get_data (NalWriter * nw, guint32 * ret_size)
|
||||
{
|
||||
guint32 size = 0;
|
||||
guint8 *data = NULL;
|
||||
|
||||
g_return_val_if_fail (nw != NULL, NULL);
|
||||
g_return_val_if_fail (ret_size != NULL, NULL);
|
||||
|
||||
*ret_size = 0;
|
||||
|
||||
if ((GST_BIT_WRITER_BIT_SIZE (&nw->bw) >> 3) == 0) {
|
||||
GST_WARNING ("No written byte");
|
||||
goto done;
|
||||
}
|
||||
|
||||
if ((GST_BIT_WRITER_BIT_SIZE (&nw->bw) & 0x7) != 0) {
|
||||
GST_WARNING ("Written stream is not byte aligned");
|
||||
if (!nal_writer_do_rbsp_trailing_bits (nw))
|
||||
goto done;
|
||||
}
|
||||
|
||||
data = nal_writer_create_nal_data (nw, &size);
|
||||
if (!data) {
|
||||
GST_WARNING ("Failed to create nal data");
|
||||
goto done;
|
||||
}
|
||||
|
||||
*ret_size = size;
|
||||
|
||||
done:
|
||||
gst_bit_writer_reset (&nw->bw);
|
||||
|
||||
return data;
|
||||
}
|
||||
|
||||
gboolean
|
||||
nal_writer_put_bits_uint8 (NalWriter * nw, guint8 value, guint nbits)
|
||||
{
|
||||
g_return_val_if_fail (nw != NULL, FALSE);
|
||||
|
||||
if (!gst_bit_writer_put_bits_uint8 (&nw->bw, value, nbits))
|
||||
return FALSE;
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
gboolean
|
||||
nal_writer_put_bits_uint16 (NalWriter * nw, guint16 value, guint nbits)
|
||||
{
|
||||
g_return_val_if_fail (nw != NULL, FALSE);
|
||||
|
||||
if (!gst_bit_writer_put_bits_uint16 (&nw->bw, value, nbits))
|
||||
return FALSE;
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
gboolean
|
||||
nal_writer_put_bits_uint32 (NalWriter * nw, guint32 value, guint nbits)
|
||||
{
|
||||
g_return_val_if_fail (nw != NULL, FALSE);
|
||||
|
||||
if (!gst_bit_writer_put_bits_uint32 (&nw->bw, value, nbits))
|
||||
return FALSE;
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
gboolean
|
||||
nal_writer_put_bytes (NalWriter * nw, const guint8 * data, guint nbytes)
|
||||
{
|
||||
g_return_val_if_fail (nw != NULL, FALSE);
|
||||
g_return_val_if_fail (data != NULL, FALSE);
|
||||
g_return_val_if_fail (nbytes != 0, FALSE);
|
||||
|
||||
if (!gst_bit_writer_put_bytes (&nw->bw, data, nbytes))
|
||||
return FALSE;
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
gboolean
|
||||
nal_writer_put_ue (NalWriter * nw, guint32 value)
|
||||
{
|
||||
guint leading_zeros;
|
||||
guint rest;
|
||||
|
||||
g_return_val_if_fail (nw != NULL, FALSE);
|
||||
|
||||
count_exp_golomb_bits (value, &leading_zeros, &rest);
|
||||
|
||||
/* write leading zeros */
|
||||
if (leading_zeros) {
|
||||
if (!nal_writer_put_bits_uint32 (nw, 0, leading_zeros))
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
/* write the rest */
|
||||
if (!nal_writer_put_bits_uint32 (nw, value + 1, rest))
|
||||
return FALSE;
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
gboolean
|
||||
count_exp_golomb_bits (guint32 value, guint * leading_zeros, guint * rest)
|
||||
{
|
||||
guint32 x;
|
||||
guint count = 0;
|
||||
|
||||
/* https://en.wikipedia.org/wiki/Exponential-Golomb_coding */
|
||||
/* count bits of value + 1 */
|
||||
x = value + 1;
|
||||
while (x) {
|
||||
count++;
|
||||
x >>= 1;
|
||||
}
|
||||
|
||||
if (leading_zeros) {
|
||||
if (count > 1)
|
||||
*leading_zeros = count - 1;
|
||||
else
|
||||
*leading_zeros = 0;
|
||||
}
|
||||
|
||||
if (rest) {
|
||||
*rest = count;
|
||||
}
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
@@ -0,0 +1,269 @@
|
||||
/* Gstreamer
|
||||
* Copyright (C) <2011> Intel Corporation
|
||||
* Copyright (C) <2011> Collabora Ltd.
|
||||
* Copyright (C) <2011> Thibault Saunier <thibault.saunier@collabora.com>
|
||||
*
|
||||
* Some bits C-c,C-v'ed and s/4/3 from h264parse and videoparsers/h264parse.c:
|
||||
* Copyright (C) <2010> Mark Nauwelaerts <mark.nauwelaerts@collabora.co.uk>
|
||||
* Copyright (C) <2010> Collabora Multimedia
|
||||
* Copyright (C) <2010> Nokia Corporation
|
||||
*
|
||||
* (C) 2005 Michal Benes <michal.benes@itonis.tv>
|
||||
* (C) 2008 Wim Taymans <wim.taymans@gmail.com>
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Library General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2 of the License, or (at your option) any later version.
|
||||
*
|
||||
* This library is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Library General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Library General Public
|
||||
* License along with this library; if not, write to the
|
||||
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
|
||||
* Boston, MA 02110-1301, USA.
|
||||
*/
|
||||
|
||||
/**
|
||||
* Common code for NAL parsing from h264 and h265 parsers.
|
||||
*/
|
||||
|
||||
#ifdef HAVE_CONFIG_H
|
||||
# include "config.h"
|
||||
#endif
|
||||
|
||||
#include <gst/base/gstbytereader.h>
|
||||
#include <gst/base/gstbitreader.h>
|
||||
#include <gst/base/gstbitwriter.h>
|
||||
|
||||
typedef struct
|
||||
{
|
||||
const guint8 *data;
|
||||
guint size;
|
||||
|
||||
guint n_epb; /* Number of emulation prevention bytes */
|
||||
guint byte; /* Byte position */
|
||||
guint bits_in_cache; /* bitpos in the cache of next bit */
|
||||
guint8 first_byte;
|
||||
guint32 epb_cache; /* cache 3 bytes to check emulation prevention bytes */
|
||||
guint64 cache; /* cached bytes */
|
||||
} NalReader;
|
||||
|
||||
typedef struct
|
||||
{
|
||||
GstBitWriter bw;
|
||||
|
||||
guint nal_prefix_size;
|
||||
gboolean packetized;
|
||||
} NalWriter;
|
||||
|
||||
G_GNUC_INTERNAL
|
||||
void nal_reader_init (NalReader * nr, const guint8 * data, guint size);
|
||||
|
||||
G_GNUC_INTERNAL
|
||||
gboolean nal_reader_read (NalReader * nr, guint nbits);
|
||||
|
||||
G_GNUC_INTERNAL
|
||||
gboolean nal_reader_skip (NalReader * nr, guint nbits);
|
||||
|
||||
G_GNUC_INTERNAL
|
||||
gboolean nal_reader_skip_long (NalReader * nr, guint nbits);
|
||||
|
||||
G_GNUC_INTERNAL
|
||||
guint nal_reader_get_pos (const NalReader * nr);
|
||||
|
||||
G_GNUC_INTERNAL
|
||||
guint nal_reader_get_remaining (const NalReader * nr);
|
||||
|
||||
G_GNUC_INTERNAL
|
||||
guint nal_reader_get_epb_count (const NalReader * nr);
|
||||
|
||||
G_GNUC_INTERNAL
|
||||
gboolean nal_reader_is_byte_aligned (NalReader * nr);
|
||||
|
||||
G_GNUC_INTERNAL
|
||||
gboolean nal_reader_has_more_data (NalReader * nr);
|
||||
|
||||
#define NAL_READER_READ_BITS_H(bits) \
|
||||
G_GNUC_INTERNAL \
|
||||
gboolean nal_reader_get_bits_uint##bits (NalReader *nr, guint##bits *val, guint nbits)
|
||||
|
||||
NAL_READER_READ_BITS_H (8);
|
||||
NAL_READER_READ_BITS_H (16);
|
||||
NAL_READER_READ_BITS_H (32);
|
||||
|
||||
#define NAL_READER_PEEK_BITS_H(bits) \
|
||||
G_GNUC_INTERNAL \
|
||||
gboolean nal_reader_peek_bits_uint##bits (const NalReader *nr, guint##bits *val, guint nbits)
|
||||
|
||||
NAL_READER_PEEK_BITS_H (8);
|
||||
|
||||
G_GNUC_INTERNAL
|
||||
gboolean nal_reader_get_ue (NalReader * nr, guint32 * val);
|
||||
|
||||
G_GNUC_INTERNAL
|
||||
gboolean nal_reader_get_se (NalReader * nr, gint32 * val);
|
||||
|
||||
#define CHECK_ALLOWED_MAX_WITH_DEBUG(dbg, val, max) { \
|
||||
if (val > max) { \
|
||||
GST_WARNING ("value for '" dbg "' greater than max. value: %d, max %d", \
|
||||
val, max); \
|
||||
goto error; \
|
||||
} \
|
||||
}
|
||||
#define CHECK_ALLOWED_MAX(val, max) \
|
||||
CHECK_ALLOWED_MAX_WITH_DEBUG (G_STRINGIFY (val), val, max)
|
||||
|
||||
#define CHECK_ALLOWED_WITH_DEBUG(dbg, val, min, max) { \
|
||||
if (val < min || val > max) { \
|
||||
GST_WARNING ("value for '" dbg "' not in allowed range. value: %d, range %d-%d", \
|
||||
val, min, max); \
|
||||
goto error; \
|
||||
} \
|
||||
}
|
||||
#define CHECK_ALLOWED(val, min, max) \
|
||||
CHECK_ALLOWED_WITH_DEBUG (G_STRINGIFY (val), val, min, max)
|
||||
|
||||
#define READ_UINT8(nr, val, nbits) { \
|
||||
if (!nal_reader_get_bits_uint8 (nr, &val, nbits)) { \
|
||||
GST_WARNING ("failed to read uint8 for '" G_STRINGIFY (val) "', nbits: %d", nbits); \
|
||||
goto error; \
|
||||
} \
|
||||
}
|
||||
|
||||
#define READ_UINT16(nr, val, nbits) { \
|
||||
if (!nal_reader_get_bits_uint16 (nr, &val, nbits)) { \
|
||||
GST_WARNING ("failed to read uint16 for '" G_STRINGIFY (val) "', nbits: %d", nbits); \
|
||||
goto error; \
|
||||
} \
|
||||
}
|
||||
|
||||
#define READ_UINT32(nr, val, nbits) { \
|
||||
if (!nal_reader_get_bits_uint32 (nr, &val, nbits)) { \
|
||||
GST_WARNING ("failed to read uint32 for '" G_STRINGIFY (val) "', nbits: %d", nbits); \
|
||||
goto error; \
|
||||
} \
|
||||
}
|
||||
|
||||
#define READ_UINT64(nr, val, nbits) { \
|
||||
if (!nal_reader_get_bits_uint64 (nr, &val, nbits)) { \
|
||||
GST_WARNING ("failed to read uint32 for '" G_STRINGIFY (val) "', nbits: %d", nbits); \
|
||||
goto error; \
|
||||
} \
|
||||
}
|
||||
|
||||
#define READ_UE(nr, val) { \
|
||||
if (!nal_reader_get_ue (nr, &val)) { \
|
||||
GST_WARNING ("failed to read UE for '" G_STRINGIFY (val) "'"); \
|
||||
goto error; \
|
||||
} \
|
||||
}
|
||||
|
||||
#define READ_UE_ALLOWED(nr, val, min, max) { \
|
||||
guint32 tmp; \
|
||||
READ_UE (nr, tmp); \
|
||||
CHECK_ALLOWED_WITH_DEBUG (G_STRINGIFY (val), tmp, min, max); \
|
||||
val = tmp; \
|
||||
}
|
||||
|
||||
#define READ_UE_MAX(nr, val, max) { \
|
||||
guint32 tmp; \
|
||||
READ_UE (nr, tmp); \
|
||||
CHECK_ALLOWED_MAX_WITH_DEBUG (G_STRINGIFY (val), tmp, max); \
|
||||
val = tmp; \
|
||||
}
|
||||
|
||||
#define READ_SE(nr, val) { \
|
||||
if (!nal_reader_get_se (nr, &val)) { \
|
||||
GST_WARNING ("failed to read SE for '" G_STRINGIFY (val) "'"); \
|
||||
goto error; \
|
||||
} \
|
||||
}
|
||||
|
||||
#define READ_SE_ALLOWED(nr, val, min, max) { \
|
||||
gint32 tmp; \
|
||||
READ_SE (nr, tmp); \
|
||||
CHECK_ALLOWED_WITH_DEBUG (G_STRINGIFY (val), tmp, min, max); \
|
||||
val = tmp; \
|
||||
}
|
||||
|
||||
G_GNUC_INTERNAL
|
||||
gint scan_for_start_codes (const guint8 * data, guint size);
|
||||
|
||||
G_GNUC_INTERNAL
|
||||
void nal_writer_init (NalWriter * nw, guint nal_prefix_size, gboolean packetized);
|
||||
|
||||
G_GNUC_INTERNAL
|
||||
void nal_writer_reset (NalWriter * nw);
|
||||
|
||||
G_GNUC_INTERNAL
|
||||
gboolean nal_writer_do_rbsp_trailing_bits (NalWriter * nw);
|
||||
|
||||
G_GNUC_INTERNAL
|
||||
GstMemory * nal_writer_reset_and_get_memory (NalWriter * nw);
|
||||
|
||||
G_GNUC_INTERNAL
|
||||
guint8 * nal_writer_reset_and_get_data (NalWriter * nw, guint32 * ret_size);
|
||||
|
||||
G_GNUC_INTERNAL
|
||||
gboolean nal_writer_put_bits_uint8 (NalWriter * nw, guint8 value, guint nbits);
|
||||
|
||||
G_GNUC_INTERNAL
|
||||
gboolean nal_writer_put_bits_uint16 (NalWriter * nw, guint16 value, guint nbits);
|
||||
|
||||
G_GNUC_INTERNAL
|
||||
gboolean nal_writer_put_bits_uint32 (NalWriter * nw, guint32 value, guint nbits);
|
||||
|
||||
G_GNUC_INTERNAL
|
||||
gboolean nal_writer_put_bytes (NalWriter * nw, const guint8 * data, guint nbytes);
|
||||
|
||||
G_GNUC_INTERNAL
|
||||
gboolean nal_writer_put_ue (NalWriter * nw, guint32 value);
|
||||
|
||||
G_GNUC_INTERNAL
|
||||
gboolean count_exp_golomb_bits (guint32 value, guint * leading_zeros, guint * rest);
|
||||
|
||||
#define WRITE_UINT8(nw, val, nbits) { \
|
||||
if (!nal_writer_put_bits_uint8 (nw, val, nbits)) { \
|
||||
GST_WARNING ("failed to write uint8 for '" G_STRINGIFY (val) "', nbits: %d", nbits); \
|
||||
goto error; \
|
||||
} \
|
||||
}
|
||||
|
||||
#define WRITE_UINT16(nw, val, nbits) { \
|
||||
if (!nal_writer_put_bits_uint16 (nw, val, nbits)) { \
|
||||
GST_WARNING ("failed to write uint16 for '" G_STRINGIFY (val) "', nbits: %d", nbits); \
|
||||
goto error; \
|
||||
} \
|
||||
}
|
||||
|
||||
#define WRITE_UINT32(nw, val, nbits) { \
|
||||
if (!nal_writer_put_bits_uint32 (nw, val, nbits)) { \
|
||||
GST_WARNING ("failed to write uint32 for '" G_STRINGIFY (val) "', nbits: %d", nbits); \
|
||||
goto error; \
|
||||
} \
|
||||
}
|
||||
|
||||
#define WRITE_BYTES(nw, data, nbytes) { \
|
||||
if (!nal_writer_put_bytes (nw, data, nbytes)) { \
|
||||
GST_WARNING ("failed to write bytes for '" G_STRINGIFY (val) "', nbits: %d", nbytes); \
|
||||
goto error; \
|
||||
} \
|
||||
}
|
||||
|
||||
#define WRITE_UE(nw, val) { \
|
||||
if (!nal_writer_put_ue (nw, val)) { \
|
||||
GST_WARNING ("failed to write ue for '" G_STRINGIFY (val) "'"); \
|
||||
goto error; \
|
||||
} \
|
||||
}
|
||||
|
||||
static inline guint32 div_ceil (guint32 a, guint32 b)
|
||||
{
|
||||
/* http://blog.pkh.me/p/36-figuring-out-round%2C-floor-and-ceil-with-integer-division.html */
|
||||
g_assert (b > 0);
|
||||
return a / b + (a % b > 0);
|
||||
}
|
||||
@@ -0,0 +1,10 @@
|
||||
/* Stub for <gst/glib-compat-private.h>.
|
||||
* In upstream GStreamer this provides backwards-compat shims for older
|
||||
* GLib versions (g_memdup2 polyfill being the load-bearing one).
|
||||
* Our gst_compat.h already defines g_memdup2 as a static inline, so
|
||||
* we just include the shim.
|
||||
*/
|
||||
#ifndef LIBVA_V4L2_REQUEST_FOURIER_GLIB_COMPAT_PRIVATE_STUB
|
||||
#define LIBVA_V4L2_REQUEST_FOURIER_GLIB_COMPAT_PRIVATE_STUB
|
||||
#include "gst_compat.h"
|
||||
#endif
|
||||
@@ -0,0 +1,10 @@
|
||||
/* Stub for <gst/gst.h> — redirects to the project's gst_compat shim.
|
||||
* The vendored GStreamer 1.28.2 H.265 parser was originally built against
|
||||
* full GStreamer; we only need the GLib type aliases + memory helpers +
|
||||
* macro stubs, all provided by gst_compat.h. Original gst.h would pull
|
||||
* in GObject + GstObject + the entire framework, which we don't link.
|
||||
*/
|
||||
#ifndef LIBVA_V4L2_REQUEST_FOURIER_GST_H_STUB
|
||||
#define LIBVA_V4L2_REQUEST_FOURIER_GST_H_STUB
|
||||
#include "gst_compat.h"
|
||||
#endif
|
||||
Reference in New Issue
Block a user