aac5773f
 hucm
功能基本完成，接口待打磨
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/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdio.h>
#include <stdlib.h>
#include <inttypes.h>
#include <string.h>
#include "libavcodec/avcodec.h"
#include "libavutil/error.h"
static int setup_side_data_entry(AVPacket* avpkt)
{
const uint8_t *data_name = NULL;
int ret = 0, bytes;
uint8_t *extra_data = NULL;
/* get side_data_name string */
data_name = av_packet_side_data_name(AV_PKT_DATA_NEW_EXTRADATA);
/* Allocate a memory bloc */
bytes = strlen(data_name);
if(!(extra_data = av_malloc(bytes))){
ret = AVERROR(ENOMEM);
fprintf(stderr, "Error occurred: %s\n", av_err2str(ret));
exit(1);
}
/* copy side_data_name to extra_data array */
memcpy(extra_data, data_name, bytes);
/* create side data for AVPacket */
ret = av_packet_add_side_data(avpkt, AV_PKT_DATA_NEW_EXTRADATA,
extra_data, bytes);
if(ret < 0){
fprintf(stderr,
"Error occurred in av_packet_add_side_data: %s\n",
av_err2str(ret));
}
return ret;
}
static int initializations(AVPacket* avpkt)
{
const static uint8_t* data = "selftest for av_packet_clone(...)";
int ret = 0;
/* initialize avpkt */
av_init_packet(avpkt);
/* set values for avpkt */
avpkt->pts = 17;
avpkt->dts = 2;
avpkt->data = (uint8_t*)data;
avpkt->size = strlen(data);
avpkt->flags = AV_PKT_FLAG_DISCARD;
avpkt->duration = 100;
avpkt->pos = 3;
ret = setup_side_data_entry(avpkt);
return ret;
}
int main(void)
{
AVPacket avpkt;
AVPacket *avpkt_clone = NULL;
int ret = 0;
if(initializations(&avpkt) < 0){
printf("failed to initialize variables\n");
return 1;
}
/* test av_packet_clone*/
avpkt_clone = av_packet_clone(&avpkt);
if(!avpkt_clone) {
av_log(NULL, AV_LOG_ERROR,"av_packet_clone failed to clone AVPacket\n");
return 1;
}
/*test av_grow_packet*/
if(av_grow_packet(avpkt_clone, 20) < 0){
av_log(NULL, AV_LOG_ERROR, "av_grow_packet failed\n");
return 1;
}
if(av_grow_packet(avpkt_clone, INT_MAX) == 0){
printf( "av_grow_packet failed to return error "
"when \"grow_by\" parameter is too large.\n" );
ret = 1;
}
/* test size error check in av_new_packet*/
if(av_new_packet(avpkt_clone, INT_MAX) == 0){
printf( "av_new_packet failed to return error "
"when \"size\" parameter is too large.\n" );
ret = 1;
}
/*test size error check in av_packet_from_data*/
if(av_packet_from_data(avpkt_clone, avpkt_clone->data, INT_MAX) == 0){
printf("av_packet_from_data failed to return error "
"when \"size\" parameter is too large.\n" );
ret = 1;
}
/*clean up*/
av_packet_free(&avpkt_clone);
av_packet_unref(&avpkt);
return ret;
}
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