I found small memory leak when using aac. This leak is 32 bytes per loop without MEMALIGN_HACK, and 48 bytes with MEMALIGN.
Simple code:
#include <iostream>
extern "C" {
#include "libavformat/avformat.h"
#include "libavcodec/avcodec.h"
}
AVOutputFormat *OutFormat;
AVFormatContext *FormatCtx;
AVCodecContext *VideoCodecCtx, *AudioCodecCtx;
AVCodec *VideoCodec, *AudioCodec;
AVStream *VideoStream, *AudioStream;
int main (int argc, char * const argv[]) {
av_register_all();
while(1)
{
FormatCtx = avformat_alloc_context();
OutFormat = guess_format(NULL, "test.3gp", NULL);
FormatCtx->oformat = OutFormat;
strncpy(FormatCtx->filename, "test.3gp",
sizeof(FormatCtx->filename));
VideoStream = av_new_stream(FormatCtx, 0);
VideoCodecCtx = VideoStream->codec;
VideoCodecCtx->codec_id = CODEC_ID_H263;
VideoCodecCtx->codec_type = CODEC_TYPE_VIDEO;
VideoCodecCtx->bit_rate = 16000;
VideoCodecCtx->width = 176;
VideoCodecCtx->height = 144;
VideoCodecCtx->time_base.den = 10;
VideoCodecCtx->time_base.num = 1;
VideoCodecCtx->pix_fmt = PIX_FMT_YUV420P;
VideoCodecCtx->flags |= CODEC_FLAG_QSCALE;
VideoCodecCtx->gop_size = 20;
VideoCodecCtx->global_quality = (float)5 * (float)FF_QP2LAMBDA;
VideoStream->quality = (float)5;
VideoStream->r_frame_rate.den = 10;
VideoStream->r_frame_rate.num = 1;
VideoCodecCtx->flags |= CODEC_FLAG_GLOBAL_HEADER;
VideoCodec = avcodec_find_encoder(VideoCodecCtx->codec_id);
if(avcodec_open(VideoCodecCtx, VideoCodec) < 0) {
printf("Fail open video\n");
return 1;
}
AudioStream = av_new_stream(FormatCtx, 1);
AudioCodecCtx = AudioStream->codec;
AudioCodecCtx->codec_id = CODEC_ID_AAC;
AudioCodecCtx->codec_type = CODEC_TYPE_AUDIO;
AudioCodecCtx->bit_rate = 32000;
AudioCodecCtx->sample_rate = 8000;
AudioCodecCtx->channels = 1;
AudioCodecCtx->time_base= (AVRational){1, 8000};
AudioCodecCtx->sample_fmt = SAMPLE_FMT_S16;
AudioCodecCtx->flags |= CODEC_FLAG_GLOBAL_HEADER;
AudioCodec = avcodec_find_encoder(AudioCodecCtx->codec_id);
if(avcodec_open(AudioCodecCtx, AudioCodec)) {
printf("Fail open audio\n");
return 2;
}
url_fopen(&FormatCtx->pb, "test.3gp",URL_WRONLY);
av_write_header(FormatCtx);
AVStream *st;
av_write_trailer(FormatCtx);
url_fclose(FormatCtx->pb);
avcodec_close(VideoStream->codec);
avcodec_close(AudioStream->codec);
for(uint32_t i=0;i< FormatCtx->nb_streams;i++) {
st = FormatCtx->streams[i];
if (st->parser) {
av_parser_close(st->parser);
av_free_packet(&st->cur_pkt);
}
av_metadata_free(&st->metadata);
av_free(st->index_entries);
av_free(st->codec->extradata);
av_free(st->codec);
av_free(st->priv_data);
av_free(st);
}
av_free(FormatCtx);
usleep(3000);
}
return 0;
}
I tried to understand exactly where the memory is lost, and Founded that the
functions
av_cold void ff_psy_preprocess_end(struct FFPsyPreprocessContext *ctx) don't
free context, so if add av_free(ctx); mem leak goes away.
Patch attached.
psymodel.c.patch
Description: Binary data
_______________________________________________ libav-user mailing list [email protected] https://lists.mplayerhq.hu/mailman/listinfo/libav-user
