AVFormatContext *format_ctx = NULL;
AVCodec *codec;
AVCodecContext *codec_ctx;
+ AVCodecParameters *par;
AVFrame *frame;
int frame_decoded, ret = 0;
AVPacket pkt;
return ret;
}
- codec_ctx = format_ctx->streams[0]->codec;
- codec = avcodec_find_decoder(codec_ctx->codec_id);
+ par = format_ctx->streams[0]->codecpar;
+ codec = avcodec_find_decoder(par->codec_id);
if (!codec) {
av_log(log_ctx, AV_LOG_ERROR, "Failed to find codec\n");
ret = AVERROR(EINVAL);
goto end;
}
+ codec_ctx = avcodec_alloc_context3(codec);
+ if (!codec_ctx) {
+ av_log(log_ctx, AV_LOG_ERROR, "Failed to alloc video decoder context\n");
+ ret = AVERROR(ENOMEM);
+ goto end;
+ }
+
+ ret = avcodec_parameters_to_context(codec_ctx, par);
+ if (ret < 0) {
+ av_log(log_ctx, AV_LOG_ERROR, "Failed to copy codec parameters to decoder context\n");
+ goto end;
+ }
+
av_dict_set(&opt, "thread_type", "slice", 0);
if ((ret = avcodec_open2(codec_ctx, codec, &opt)) < 0) {
av_log(log_ctx, AV_LOG_ERROR, "Failed to open codec\n");
end:
av_packet_unref(&pkt);
- avcodec_close(codec_ctx);
+ avcodec_free_context(&codec_ctx);
avformat_close_input(&format_ctx);
av_frame_free(&frame);
av_dict_free(&opt);