Stephan Aßmus
8887a47ded
with regards to using the wrong #include scope in one file and disabling two apparently unmaintained asserts when compiling in DEBUG mode). I didn't yet test the GCC 2 build, but I need to get this into SVN since I am having some annoying file corruption troubles. In fact I am hoping I am not commiting broken files, but a few seconds ago everything was still building cleanly. One thing that definitely improved is the (disabled at the moment) AVI support. Every clip I tested so far plays, which can't be said about our native AVI reader. With the previous FFmpeg version (a random SVN revision is my guess), many old AVIs played completely broken. So far, I have not spotted any regressions git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38548 a95241bf-73f2-0310-859d-f6bbb57e9c96
100 lines
2.8 KiB
C
100 lines
2.8 KiB
C
/*
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* AVPacket functions for libavcodec
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* Copyright (c) 2000, 2001, 2002 Fabrice Bellard
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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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#include "avcodec.h"
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void av_destruct_packet_nofree(AVPacket *pkt)
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{
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pkt->data = NULL; pkt->size = 0;
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}
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void av_destruct_packet(AVPacket *pkt)
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{
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av_free(pkt->data);
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pkt->data = NULL; pkt->size = 0;
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}
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void av_init_packet(AVPacket *pkt)
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{
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pkt->pts = AV_NOPTS_VALUE;
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pkt->dts = AV_NOPTS_VALUE;
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pkt->pos = -1;
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pkt->duration = 0;
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pkt->convergence_duration = 0;
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pkt->flags = 0;
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pkt->stream_index = 0;
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pkt->destruct= NULL;
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}
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int av_new_packet(AVPacket *pkt, int size)
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{
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uint8_t *data= NULL;
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if((unsigned)size < (unsigned)size + FF_INPUT_BUFFER_PADDING_SIZE)
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data = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
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if (data){
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memset(data + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
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}else
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size=0;
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av_init_packet(pkt);
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pkt->data = data;
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pkt->size = size;
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pkt->destruct = av_destruct_packet;
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if(!data)
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return AVERROR(ENOMEM);
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return 0;
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}
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void av_shrink_packet(AVPacket *pkt, int size)
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{
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if (pkt->size <= size) return;
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pkt->size = size;
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memset(pkt->data + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
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}
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int av_dup_packet(AVPacket *pkt)
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{
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if (((pkt->destruct == av_destruct_packet_nofree) || (pkt->destruct == NULL)) && pkt->data) {
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uint8_t *data;
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/* We duplicate the packet and don't forget to add the padding again. */
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if((unsigned)pkt->size > (unsigned)pkt->size + FF_INPUT_BUFFER_PADDING_SIZE)
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return AVERROR(ENOMEM);
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data = av_malloc(pkt->size + FF_INPUT_BUFFER_PADDING_SIZE);
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if (!data) {
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return AVERROR(ENOMEM);
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}
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memcpy(data, pkt->data, pkt->size);
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memset(data + pkt->size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
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pkt->data = data;
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pkt->destruct = av_destruct_packet;
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}
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return 0;
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}
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void av_free_packet(AVPacket *pkt)
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{
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if (pkt) {
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if (pkt->destruct) pkt->destruct(pkt);
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pkt->data = NULL; pkt->size = 0;
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}
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}
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