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X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Cc: Romain Beauxis Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: This is the code for the main utility used to dump chained streams and test for decoded metadata in subsequent patches. --- tests/Makefile | 1 + tests/api/Makefile | 2 +- tests/api/api-dump-stream-meta-test.c | 169 ++++++++++++++++++++++++++ 3 files changed, 171 insertions(+), 1 deletion(-) create mode 100644 tests/api/api-dump-stream-meta-test.c diff --git a/tests/Makefile b/tests/Makefile index f9f5fc07f3..1f7e5003c2 100644 --- a/tests/Makefile +++ b/tests/Makefile @@ -277,6 +277,7 @@ $(FATE_FFPROBE) $(FATE_FFMPEG_FFPROBE) $(FATE_SAMPLES_FFPROBE) $(FATE_SAMPLES_FF $(FATE_SAMPLES_FASTSTART): tools/qt-faststart$(EXESUF) $(FATE_SAMPLES_DUMP_DATA) $(FATE_SAMPLES_DUMP_DATA-yes): tools/venc_data_dump$(EXESUF) $(FATE_SAMPLES_SCALE_SLICE): tools/scale_slice_test$(EXESUF) +$(FATE_SAMPLES_DUMP_STREAM_META): tests/api/api-dump-stream-meta-test$(EXESUF) ifdef SAMPLES FATE += $(FATE_EXTERN) diff --git a/tests/api/Makefile b/tests/api/Makefile index c96e636756..a2cb06a729 100644 --- a/tests/api/Makefile +++ b/tests/api/Makefile @@ -1,7 +1,7 @@ APITESTPROGS-$(call ENCDEC, FLAC, FLAC) += api-flac APITESTPROGS-$(call DEMDEC, H264, H264) += api-h264 APITESTPROGS-$(call DEMDEC, H264, H264) += api-h264-slice -APITESTPROGS-yes += api-seek +APITESTPROGS-yes += api-seek api-dump-stream-meta APITESTPROGS-$(call DEMDEC, H263, H263) += api-band APITESTPROGS-$(HAVE_THREADS) += api-threadmessage APITESTPROGS += $(APITESTPROGS-yes) diff --git a/tests/api/api-dump-stream-meta-test.c b/tests/api/api-dump-stream-meta-test.c new file mode 100644 index 0000000000..4ffdfe8213 --- /dev/null +++ b/tests/api/api-dump-stream-meta-test.c @@ -0,0 +1,169 @@ +/* + * Copyright (c) 2025 Romain Beauxis + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +/** + * Dump stream metadata + */ + +#include "libavcodec/avcodec.h" +#include "libavformat/avformat.h" +#include "libavutil/timestamp.h" + +static int dump_stream_meta(const char *input_filename) +{ + const AVCodec *codec = NULL; + AVPacket *pkt = NULL; + AVFrame *fr = NULL; + AVFormatContext *fmt_ctx = NULL; + AVCodecContext *ctx = NULL; + AVCodecParameters *origin_par = NULL; + int audio_stream; + int result; + char *metadata; + + result = avformat_open_input(&fmt_ctx, input_filename, NULL, NULL); + if (result < 0) { + av_log(NULL, AV_LOG_ERROR, "Can't open file\n"); + return result; + } + + result = avformat_find_stream_info(fmt_ctx, NULL); + if (result < 0) { + av_log(NULL, AV_LOG_ERROR, "Can't get stream info\n"); + goto end; + } + + // TODO: add ability to work with video format + audio_stream = + av_find_best_stream(fmt_ctx, AVMEDIA_TYPE_AUDIO, -1, -1, NULL, 0); + if (audio_stream < 0) { + av_log(NULL, AV_LOG_ERROR, "Can't find audio stream in input file\n"); + result = audio_stream; + goto end; + } + + origin_par = fmt_ctx->streams[audio_stream]->codecpar; + + result = av_dict_get_string( + fmt_ctx->streams[audio_stream]->metadata, &metadata, '=', ':'); + if (result < 0) + goto end; + + printf("Stream ID: %d, codec name: %s, metadata: %s\n", audio_stream, + avcodec_get_name(origin_par->codec_id), metadata); + + codec = avcodec_find_decoder(origin_par->codec_id); + if (!codec) { + av_log(NULL, AV_LOG_ERROR, "Can't find decoder\n"); + result = AVERROR_DECODER_NOT_FOUND; + goto end; + } + + ctx = avcodec_alloc_context3(codec); + if (!ctx) { + av_log(NULL, AV_LOG_ERROR, "Can't allocate decoder context\n"); + result = AVERROR(ENOMEM); + goto end; + } + + result = avcodec_parameters_to_context(ctx, origin_par); + if (result) { + av_log(NULL, AV_LOG_ERROR, "Can't copy decoder context\n"); + goto end; + } + + result = avcodec_open2(ctx, codec, NULL); + if (result < 0) { + av_log(ctx, AV_LOG_ERROR, "Can't open decoder\n"); + goto end; + } + + pkt = av_packet_alloc(); + if (!pkt) { + av_log(NULL, AV_LOG_ERROR, "Cannot allocate packet\n"); + result = AVERROR(ENOMEM); + goto end; + } + + fr = av_frame_alloc(); + if (!fr) { + av_log(NULL, AV_LOG_ERROR, "Can't allocate frame\n"); + result = AVERROR(ENOMEM); + goto end; + } + + for (;;) { + result = av_read_frame(fmt_ctx, pkt); + if (result) + goto end; + + if (pkt->stream_index != audio_stream) { + av_packet_unref(pkt); + continue; + } + + printf("Stream ID: %d, packet PTS: %s, packet DTS: %s\n", + pkt->stream_index, av_ts2str(pkt->pts), av_ts2str(pkt->dts)); + + result = avcodec_send_packet(ctx, pkt); + av_packet_unref(pkt); + + if (result < 0) + goto end; + + result = avcodec_receive_frame(ctx, fr); + if (result == AVERROR_EOF) { + result = 0; + goto end; + } + + if (result == AVERROR(EAGAIN)) + continue; + + result = av_dict_get_string(fr->metadata, &metadata, '=', ':'); + if (result < 0) + goto end; + + printf("Stream ID: %d, frame PTS: %s, metadata: %s\n", + pkt->stream_index, av_ts2str(fr->pts), metadata); + } + +end: + av_packet_free(&pkt); + av_frame_free(&fr); + avformat_close_input(&fmt_ctx); + avcodec_free_context(&ctx); + return result; +} + +int main(int argc, char **argv) +{ + if (argc < 2) { + av_log(NULL, AV_LOG_ERROR, "Incorrect input\n"); + return 1; + } + + if (dump_stream_meta(argv[1]) != AVERROR_EOF) + return 1; + + return 0; +} -- 2.39.5 (Apple Git-154) _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".