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avformat/movenc: support writing cropping values 

Finishes implementing ticket #7437.

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2024-07-08 20:51:08 -03:00
parent 93be6b425e
commit 32588a9394
2 changed files with 49 additions and 21 deletions
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54
libavformat/movenc.c
View File

@ -2351,18 +2351,31 @@ static int mov_write_dvcc_dvvc_tag(AVFormatContext *s, AVIOContext *pb, AVDOVIDe
return 32; /* 8 + 24 */
}
static int mov_write_clap_tag(AVIOContext *pb, MOVTrack *track)
static int mov_write_clap_tag(AVIOContext *pb, MOVTrack *track,
uint32_t top, uint32_t bottom,
uint32_t left, uint32_t right)
{
uint32_t cropped_width = track->par->width - left - right;
uint32_t cropped_height = track->height - top - bottom;
AVRational horizOff =
av_sub_q((AVRational) { track->par->width - cropped_width, 2 },
(AVRational) { left, 1 });
AVRational vertOff =
av_sub_q((AVRational) { track->height - cropped_height, 2 },
(AVRational) { top, 1 });
avio_wb32(pb, 40);
ffio_wfourcc(pb, "clap");
avio_wb32(pb, track->par->width); /* apertureWidth_N */
avio_wb32(pb, 1); /* apertureWidth_D (= 1) */
avio_wb32(pb, track->height); /* apertureHeight_N */
avio_wb32(pb, 1); /* apertureHeight_D (= 1) */
avio_wb32(pb, 0); /* horizOff_N (= 0) */
avio_wb32(pb, 1); /* horizOff_D (= 1) */
avio_wb32(pb, 0); /* vertOff_N (= 0) */
avio_wb32(pb, 1); /* vertOff_D (= 1) */
avio_wb32(pb, cropped_width); /* apertureWidthN */
avio_wb32(pb, 1); /* apertureWidthD */
avio_wb32(pb, cropped_height); /* apertureHeightN */
avio_wb32(pb, 1); /* apertureHeightD */
avio_wb32(pb, -horizOff.num);
avio_wb32(pb, horizOff.den);
avio_wb32(pb, -vertOff.num);
avio_wb32(pb, vertOff.den);
return 40;
}
@ -2590,6 +2603,7 @@ static int mov_write_video_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContex
{
int ret = AVERROR_BUG;
int64_t pos = avio_tell(pb);
const AVPacketSideData *sd;
char compressor_name[32] = { 0 };
int avid = 0;
@ -2763,7 +2777,6 @@ static int mov_write_video_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContex
if (track->mode == MODE_MOV || (track->mode == MODE_MP4 &&
mov->fc->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) {
const AVPacketSideData *sd;
const AVStereo3D *stereo3d = NULL;
const AVSphericalMapping *spherical_mapping = NULL;
@ -2800,9 +2813,24 @@ static int mov_write_video_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContex
mov_write_pasp_tag(pb, track);
}
if (uncompressed_ycbcr){
mov_write_clap_tag(pb, track);
}
sd = av_packet_side_data_get(track->st->codecpar->coded_side_data,
track->st->codecpar->nb_coded_side_data,
AV_PKT_DATA_FRAME_CROPPING);
if (sd && sd->size >= sizeof(uint32_t) * 4) {
uint64_t top = AV_RL32(sd->data + 0);
uint64_t bottom = AV_RL32(sd->data + 4);
uint64_t left = AV_RL32(sd->data + 8);
uint64_t right = AV_RL32(sd->data + 12);
if ((left + right) >= track->par->width ||
(top + bottom) >= track->height) {
av_log(s, AV_LOG_ERROR, "Invalid cropping dimensions in stream side data\n");
return AVERROR(EINVAL);
}
if (top || bottom || left || right)
mov_write_clap_tag(pb, track, top, bottom, left, right);
} else if (uncompressed_ycbcr)
mov_write_clap_tag(pb, track, 0, 0, 0, 0);
if (mov->encryption_scheme != MOV_ENC_NONE) {
ff_mov_cenc_write_sinf_tag(track, pb, mov->encryption_kid);

16
tests/ref/fate/copy-trac236
View File

@ -1,24 +1,24 @@
34b0ad38518b0eb8464aff04e6d0e143 *tests/data/fate/copy-trac236.mov
630878 tests/data/fate/copy-trac236.mov
ca4068319c6586de757c1f6a592b31e5 *tests/data/fate/copy-trac236.mov
630918 tests/data/fate/copy-trac236.mov
#tb 0: 100/2997
#media_type 0: video
#codec_id 0: rawvideo
#dimensions 0: 720x480
#dimensions 0: 704x480
#sar 0: 10/11
#tb 1: 1/48000
#media_type 1: audio
#codec_id 1: pcm_s16le
#sample_rate 1: 48000
#channel_layout_name 1: stereo
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