FFmpeg
3.3.8
libavcodec
hap.c
Go to the documentation of this file.
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/*
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* Vidvox Hap utility functions
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* Copyright (C) 2015 Tom Butterworth <bangnoise@gmail.com>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* Hap utilities
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*/
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#include "
hap.h
"
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int
ff_hap_set_chunk_count
(
HapContext
*
ctx
,
int
count
,
int
first_in_frame)
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{
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int
ret = 0;
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if
(first_in_frame == 1 && ctx->
chunk_count
!= count) {
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int
ret =
av_reallocp_array
(&ctx->
chunks
, count,
sizeof
(
HapChunk
));
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if
(ret == 0)
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ret =
av_reallocp_array
(&ctx->
chunk_results
, count,
sizeof
(
int
));
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if
(ret < 0) {
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ctx->
chunk_count
= 0;
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}
else
{
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ctx->
chunk_count
=
count
;
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}
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}
else
if
(ctx->
chunk_count
!= count) {
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/* If this is not the first chunk count calculated for a frame and a
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* different count has already been encountered, then reject the frame:
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* each table in the Decode Instructions Container must describe the
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* same number of chunks. */
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ret =
AVERROR_INVALIDDATA
;
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}
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return
ret;
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}
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av_cold
void
ff_hap_free_context
(
HapContext
*
ctx
)
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{
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av_freep
(&ctx->
tex_buf
);
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av_freep
(&ctx->
chunks
);
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av_freep
(&ctx->
chunk_results
);
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}
HapContext
Definition:
hap.h:60
AVERROR_INVALIDDATA
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition:
error.h:59
HapContext::chunks
HapChunk * chunks
Definition:
hap.h:71
av_cold
#define av_cold
Definition:
attributes.h:82
ff_hap_set_chunk_count
int ff_hap_set_chunk_count(HapContext *ctx, int count, int first_in_frame)
Definition:
hap.c:28
hap.h
HapContext::chunk_results
int * chunk_results
Definition:
hap.h:72
av_reallocp_array
int av_reallocp_array(void *ptr, size_t nmemb, size_t size)
Allocate, reallocate, or free an array through a pointer to a pointer.
Definition:
mem.c:191
ctx
AVFormatContext * ctx
Definition:
movenc.c:48
ff_hap_free_context
av_cold void ff_hap_free_context(HapContext *ctx)
Definition:
hap.c:50
HapContext::chunk_count
int chunk_count
Definition:
hap.h:70
HapContext::tex_buf
uint8_t * tex_buf
Definition:
hap.h:76
HapChunk
Definition:
hap.h:52
av_freep
#define av_freep(p)
Definition:
tableprint_vlc.h:35
count
void INT64 INT64 count
Definition:
avisynth_c.h:690
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