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Code Issues Releases Activity

avformat/swfenc: add support for muxing png images

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Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Marton Balint 2019-09-28 22:58:52 +02:00
parent 041e735c81
commit 8d5f2a005d
1 changed files with 8 additions and 6 deletions
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14
libavformat/swfenc.c
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@ -224,11 +224,12 @@ static int swf_write_header(AVFormatContext *s)
} }
if (par->codec_id == AV_CODEC_ID_VP6F || if (par->codec_id == AV_CODEC_ID_VP6F ||
par->codec_id == AV_CODEC_ID_FLV1 || par->codec_id == AV_CODEC_ID_FLV1 ||
par->codec_id == AV_CODEC_ID_PNG ||
par->codec_id == AV_CODEC_ID_MJPEG) { par->codec_id == AV_CODEC_ID_MJPEG) {
swf->video_st = s->streams[i]; swf->video_st = s->streams[i];
swf->video_par = par; swf->video_par = par;
} else { } else {
av_log(s, AV_LOG_ERROR, "SWF muxer only supports VP6, FLV1 and MJPEG\n"); av_log(s, AV_LOG_ERROR, "SWF muxer only supports VP6, FLV1, PNG and MJPEG\n");
return -1; return -1;
} }
} }
@ -257,7 +258,7 @@ static int swf_write_header(AVFormatContext *s)
if (!strcmp("avm2", s->oformat->name)) if (!strcmp("avm2", s->oformat->name))
version = 9; version = 9;
else if (swf->video_par && swf->video_par->codec_id == AV_CODEC_ID_VP6F) else if (swf->video_par && (swf->video_par->codec_id == AV_CODEC_ID_VP6F || swf->video_par->codec_id == AV_CODEC_ID_PNG))
version = 8; /* version 8 and above support VP6 codec */ version = 8; /* version 8 and above support VP6 codec */
else if (swf->video_par && swf->video_par->codec_id == AV_CODEC_ID_FLV1) else if (swf->video_par && swf->video_par->codec_id == AV_CODEC_ID_FLV1)
version = 6; /* version 6 and above support FLV1 codec */ version = 6; /* version 6 and above support FLV1 codec */
@ -285,7 +286,7 @@ static int swf_write_header(AVFormatContext *s)
} }
/* define a shape with the jpeg inside */ /* define a shape with the jpeg inside */
if (swf->video_par && swf->video_par->codec_id == AV_CODEC_ID_MJPEG) { if (swf->video_par && (swf->video_par->codec_id == AV_CODEC_ID_MJPEG || swf->video_par->codec_id == AV_CODEC_ID_PNG)) {
put_swf_tag(s, TAG_DEFINESHAPE); put_swf_tag(s, TAG_DEFINESHAPE);
avio_wl16(pb, SHAPE_ID); /* ID of shape */ avio_wl16(pb, SHAPE_ID); /* ID of shape */
@ -406,7 +407,7 @@ static int swf_write_video(AVFormatContext *s,
avio_wl16(pb, swf->video_frame_number++); avio_wl16(pb, swf->video_frame_number++);
avio_write(pb, buf, size); avio_write(pb, buf, size);
put_swf_end_tag(s); put_swf_end_tag(s);
} else if (par->codec_id == AV_CODEC_ID_MJPEG) { } else if (par->codec_id == AV_CODEC_ID_MJPEG || par->codec_id == AV_CODEC_ID_PNG) {
if (swf->swf_frame_number > 0) { if (swf->swf_frame_number > 0) {
/* remove the shape */ /* remove the shape */
put_swf_tag(s, TAG_REMOVEOBJECT); put_swf_tag(s, TAG_REMOVEOBJECT);
@ -425,8 +426,9 @@ static int swf_write_video(AVFormatContext *s,
avio_wl16(pb, BITMAP_ID); /* ID of the image */ avio_wl16(pb, BITMAP_ID); /* ID of the image */
/* a dummy jpeg header seems to be required */ /* a dummy jpeg header seems to be required */
avio_wb32(pb, 0xffd8ffd9); if (par->codec_id == AV_CODEC_ID_MJPEG)
/* write the jpeg image */ avio_wb32(pb, 0xffd8ffd9);
/* write the jpeg/png image */
avio_write(pb, buf, size); avio_write(pb, buf, size);
put_swf_end_tag(s); put_swf_end_tag(s);