+static void show_frame(WriterContext *w, AVFrame *frame, AVStream *stream)
+{
+ struct print_buf pbuf = {.s = NULL};
+ const char *s;
+
+ print_section_header("frame");
+
+ s = av_get_media_type_string(stream->codec->codec_type);
+ if (s) print_str ("media_type", s);
+ else print_str_opt("media_type", "unknown");
+ print_int("key_frame", frame->key_frame);
+ print_ts ("pkt_pts", frame->pkt_pts);
+ print_time("pkt_pts_time", frame->pkt_pts, &stream->time_base);
+ print_ts ("pkt_dts", frame->pkt_dts);
+ print_time("pkt_dts_time", frame->pkt_dts, &stream->time_base);
+ if (frame->pkt_pos != -1) print_fmt ("pkt_pos", "%"PRId64, frame->pkt_pos);
+ else print_str_opt("pkt_pos", "N/A");
+
+ switch (stream->codec->codec_type) {
+ case AVMEDIA_TYPE_VIDEO:
+ print_int("width", frame->width);
+ print_int("height", frame->height);
+ s = av_get_pix_fmt_name(frame->format);
+ if (s) print_str ("pix_fmt", s);
+ else print_str_opt("pix_fmt", "unknown");
+ if (frame->sample_aspect_ratio.num) {
+ print_fmt("sample_aspect_ratio", "%d:%d",
+ frame->sample_aspect_ratio.num,
+ frame->sample_aspect_ratio.den);
+ } else {
+ print_str_opt("sample_aspect_ratio", "N/A");
+ }
+ print_fmt("pict_type", "%c", av_get_picture_type_char(frame->pict_type));
+ print_int("coded_picture_number", frame->coded_picture_number);
+ print_int("display_picture_number", frame->display_picture_number);
+ print_int("interlaced_frame", frame->interlaced_frame);
+ print_int("top_field_first", frame->top_field_first);
+ print_int("repeat_pict", frame->repeat_pict);
+ print_int("reference", frame->reference);
+ break;
+
+ case AVMEDIA_TYPE_AUDIO:
+ s = av_get_sample_fmt_name(frame->format);
+ if (s) print_str ("sample_fmt", s);
+ else print_str_opt("sample_fmt", "unknown");
+ print_int("nb_samples", frame->nb_samples);
+ break;
+ }
+
+ print_section_footer("frame");
+
+ av_free(pbuf.s);
+ fflush(stdout);
+}
+
+static av_always_inline int get_decoded_frame(AVFormatContext *fmt_ctx,
+ AVFrame *frame, int *got_frame,
+ AVPacket *pkt)
+{
+ AVCodecContext *dec_ctx = fmt_ctx->streams[pkt->stream_index]->codec;
+ int ret = 0;
+
+ *got_frame = 0;
+ switch (dec_ctx->codec_type) {
+ case AVMEDIA_TYPE_VIDEO:
+ ret = avcodec_decode_video2(dec_ctx, frame, got_frame, pkt);
+ break;
+
+ case AVMEDIA_TYPE_AUDIO:
+ ret = avcodec_decode_audio4(dec_ctx, frame, got_frame, pkt);
+ break;
+ }
+
+ return ret;
+}
+