Lines Matching refs:dc
35 static int decode_read(DecodeContext *dc, int flush)
41 (dc->max_frames == 0 || dc->decoder->frame_number < dc->max_frames)) {
42 ret = avcodec_receive_frame(dc->decoder, dc->frame);
45 int err = dc->process_frame(dc, NULL);
53 ret = dc->process_frame(dc, dc->frame);
54 av_frame_unref(dc->frame);
58 if (dc->max_frames && dc->decoder->frame_number == dc->max_frames)
62 return (dc->max_frames == 0 || dc->decoder->frame_number < dc->max_frames) ? 0 : 1;
65 int ds_run(DecodeContext *dc)
69 ret = avcodec_open2(dc->decoder, NULL, &dc->decoder_opts);
74 ret = av_read_frame(dc->demuxer, dc->pkt);
77 if (dc->pkt->stream_index != dc->stream->index) {
78 av_packet_unref(dc->pkt);
82 ret = avcodec_send_packet(dc->decoder, dc->pkt);
87 av_packet_unref(dc->pkt);
89 ret = decode_read(dc, 0);
98 avcodec_send_packet(dc->decoder, NULL);
99 ret = decode_read(dc, 1);
108 void ds_free(DecodeContext *dc)
110 av_dict_free(&dc->decoder_opts);
112 av_frame_free(&dc->frame);
113 av_packet_free(&dc->pkt);
115 avcodec_free_context(&dc->decoder);
116 avformat_close_input(&dc->demuxer);
119 int ds_open(DecodeContext *dc, const char *url, int stream_idx)
124 memset(dc, 0, sizeof(*dc));
126 dc->pkt = av_packet_alloc();
127 dc->frame = av_frame_alloc();
128 if (!dc->pkt || !dc->frame) {
133 ret = avformat_open_input(&dc->demuxer, url, NULL, NULL);
139 if (stream_idx < 0 || stream_idx >= dc->demuxer->nb_streams)
142 dc->stream = dc->demuxer->streams[stream_idx];
144 codec = avcodec_find_decoder(dc->stream->codecpar->codec_id);
148 dc->decoder = avcodec_alloc_context3(codec);
149 if (!dc->decoder)
155 ds_free(dc);