[FFmpeg-devel] [PATCH v1 2/2] Add stream dump test with test for ogg/flac.

[Romain Beauxis <romain.beauxis@gmail.com>]

This patch adds a fate test for ogg/flac chained streams.

First, a new api-dump-stream-meta-test utility is introduced then it is
used to dump the metadata of a ogg/flac chained sample.

Sample is available here: https://www.dropbox.com/scl/fo/fxt2edwkyj2mjc9qubku5/AICHxJyxMMAK8MIJqWLcvk4?rlkey=mlt12lsu741ejukz0p5qtn9rq&dl=0

Sample is very short so the dump output is:

Stream ID: 0, PTS: 0, DTS: 0, metadata: encoder=Lavc61.19.100 flac:title=First Stream
Stream ID: 0, PTS: 4608, DTS: 4608, metadata: encoder=Lavc61.19.100 flac:title=First Stream
Stream ID: 0, PTS: 0, DTS: 0, metadata: encoder=Lavc61.19.100 flac:title=Second Stream
Stream ID: 0, PTS: 4608, DTS: 4608, metadata: encoder=Lavc61.19.100 flac:title=Second Stream

---
 tests/Makefile                        |  2 +
 tests/api/Makefile                    |  2 +-
 tests/api/api-dump-stream-meta-test.c | 88 +++++++++++++++++++++++++++
 tests/fate/api.mak                    |  5 ++
 tests/fate/ogg-flac.mak               | 11 ++++
 5 files changed, 107 insertions(+), 1 deletion(-)
 create mode 100644 tests/api/api-dump-stream-meta-test.c
 create mode 100644 tests/fate/ogg-flac.mak

diff --git a/tests/Makefile b/tests/Makefile
index f9f5fc07f3..66e5189e6d 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -219,6 +219,7 @@ include $(SRC_PATH)/tests/fate/mpeg4.mak
 include $(SRC_PATH)/tests/fate/mpegps.mak
 include $(SRC_PATH)/tests/fate/mpegts.mak
 include $(SRC_PATH)/tests/fate/mxf.mak
+include $(SRC_PATH)/tests/fate/ogg-flac.mak
 include $(SRC_PATH)/tests/fate/oma.mak
 include $(SRC_PATH)/tests/fate/opus.mak
 include $(SRC_PATH)/tests/fate/pcm.mak
@@ -277,6 +278,7 @@ $(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..d750e0aecb
--- /dev/null
+++ b/tests/api/api-dump-stream-meta-test.c
@@ -0,0 +1,88 @@
+/*
+ * 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 "libavformat/avformat.h"
+
+static int dump_stream_meta(const char *input_filename)
+{
+    AVPacket *pkt = NULL;
+    AVFormatContext *fmt_ctx = NULL;
+    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;
+    }
+
+    pkt = av_packet_alloc();
+    if (!pkt) {
+        av_log(NULL, AV_LOG_ERROR, "Cannot allocate packet\n");
+        result = AVERROR(ENOMEM);
+        goto end;
+    }
+
+    for (;;) {
+        result = av_read_frame(fmt_ctx, pkt);
+        if (result)
+            goto end;
+
+        result = av_dict_get_string(
+            fmt_ctx->streams[pkt->stream_index]->metadata, &metadata, '=', ':');
+        if (result < 0)
+            goto end;
+
+        printf("Stream ID: %d, PTS: %lld, DTS: %lld, metadata: %s\n",
+            pkt->stream_index, pkt->pts, pkt->dts, metadata);
+        av_free(metadata);
+        av_packet_unref(pkt);
+    }
+
+end:
+    av_packet_free(&pkt);
+    avformat_close_input(&fmt_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;
+}
diff --git a/tests/fate/api.mak b/tests/fate/api.mak
index d2868e57ac..a9872a5589 100644
--- a/tests/fate/api.mak
+++ b/tests/fate/api.mak
@@ -1,3 +1,8 @@
+FATE_API_LIBAVFORMAT-$(call ENCDEC, FLAC, FLAC) += api-dump-stream-meta
+fate-api-ogg-flac-meta: $(APITESTSDIR)/api-dump-stream-meta-test$(EXESUF)
+fate-api-ogg-flac-meta: CMD = run $(APITESTSDIR)/api-flac-test$(EXESUF)
+fate-api-ogg-flac-meta: CMP = null
+
 FATE_API_LIBAVCODEC-$(call ENCDEC, FLAC, FLAC) += fate-api-flac
 fate-api-flac: $(APITESTSDIR)/api-flac-test$(EXESUF)
 fate-api-flac: CMD = run $(APITESTSDIR)/api-flac-test$(EXESUF)
diff --git a/tests/fate/ogg-flac.mak b/tests/fate/ogg-flac.mak
new file mode 100644
index 0000000000..22e2030534
--- /dev/null
+++ b/tests/fate/ogg-flac.mak
@@ -0,0 +1,11 @@
+FATE_OGG_FLAC += fate-ogg-flac-chained-meta
+fate-ogg-flac-chained-meta: REF = $(SAMPLES)/ogg-flac/chained-meta.txt
+fate-ogg-flac-chained-meta: CMD = $(APITESTSDIR)/api-dump-stream-meta-test$(EXESUF) $(TARGET_SAMPLES)/ogg-flac/chained-meta.ogg
+
+FATE_OGG_FLAC-$(call DEMDEC, OGG, FLAC) += $(FATE_OGG_FLAC)
+
+FATE_SAMPLES_DUMP_STREAM_META += $(FATE_OGG_FLAC-yes)
+
+FATE_EXTERN += $(FATE_OGG_FLAC-yes)
+
+fate-ogg-flac: $(FATE_OGG_FLAC-yes)
-- 
2.39.5 (Apple Git-154)

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