mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-16 04:15:05 +00:00
863ebe6f83
Add keyframe index metadata
Used to facilitate seeking; particularly for HTTP pseudo streaming.
1. read live streaming or file by sequence
2. if use add_keyframe_index option, add a mark flag at the position,
use to insert new context at the last step.
3. add the keyframes *offset* and *timestamp* into a list
4. if use add_keyframe_index option, shift the metadata data from
mark flag offset
5. insert the keyframes *offset* and *timestamp* from the list by
sequence
6. free the list
7. end.
Add FATE test case;
Reviewed-by: Lou Logan <lou@lrcd.com>
Signed-off-by: Steven Liu <liuqi@gosun.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
12 lines
779 B
Makefile
12 lines
779 B
Makefile
tests/data/add_keyframe_index.flv: TAG = GEN
|
|
tests/data/add_keyframe_index.flv: ffmpeg$(PROGSSUF)$(EXESUF) | tests/data
|
|
$(M)$(TARGET_EXEC) $(TARGET_PATH)/$< \
|
|
-f lavfi -i "sws_flags=+accurate_rnd+bitexact;testsrc=r=7:n=2:d=20" -sws_flags '+accurate_rnd+bitexact' -metadata "encoder=Lavf" -pix_fmt yuv420p -c:v flv1 -g 7 -f flv -flags +bitexact \
|
|
-flvflags add_keyframe_index -idct simple -dct int -y $(TARGET_PATH)/tests/data/add_keyframe_index.flv 2> /dev/null;
|
|
|
|
FATE_AFILTER-$(call ALLYES, FLV_MUXER FLV_DEMUXER AVDEVICE TESTSRC_FILTER LAVFI_INDEV FLV_ENCODER) += fate-flv-add_keyframe_index
|
|
fate-flv-add_keyframe_index: tests/data/add_keyframe_index.flv
|
|
fate-flv-add_keyframe_index: CMD = ffmetadata -flags +bitexact -i $(TARGET_PATH)/tests/data/add_keyframe_index.flv
|
|
|
|
|