highperfocused/ffmpeg
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

new avm2 (flash 9) muxer, patch by Paul Egan, paulegan at mail dot com

Browse Source 
Originally committed as revision 11574 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Paul Egan
2008-01-20 18:30:04 +00:00
committed by Baptiste Coudurier
parent 76e4864583
commit dfb400a8ea
4 changed files with 32 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
libavformat/swf.c
View File

@ -40,6 +40,7 @@
#define TAG_STREAMHEAD2 45
#define TAG_VIDEOSTREAM 60
#define TAG_VIDEOFRAME 61
#define TAG_FILEATTRIBUTES 69
#define TAG_LONG 0x100
@ -249,6 +250,7 @@ static int swf_write_header(AVFormatContext *s)
PutBitContext p;
uint8_t buf1[256];
int i, width, height, rate, rate_base;
int is_avm2;
swf->audio_in_pos = 0;
swf->sound_samples = 0;
@ -305,8 +307,12 @@ static int swf_write_header(AVFormatContext *s)
swf->samples_per_frame = (audio_enc->sample_rate * rate_base) / rate;
}
is_avm2 = !strcmp("avm2", s->oformat->name);
put_tag(pb, "FWS");
if (video_enc && video_enc->codec_id == CODEC_ID_VP6F) {
if (is_avm2) {
put_byte(pb, 9);
} else if (video_enc && video_enc->codec_id == CODEC_ID_VP6F) {
put_byte(pb, 8); /* version (version 8 and above support VP6 codec) */
} else if (video_enc && video_enc->codec_id == CODEC_ID_FLV1) {
put_byte(pb, 6); /* version (version 6 and above support FLV1 codec) */
@ -321,6 +327,13 @@ static int swf_write_header(AVFormatContext *s)
swf->duration_pos = url_ftell(pb);
put_le16(pb, (uint16_t)(DUMMY_DURATION * (int64_t)rate / rate_base)); /* frame count */
/* avm2/swf v9 (also v8?) files require a file attribute tag */
if (is_avm2) {
put_swf_tag(s, TAG_FILEATTRIBUTES);
put_le32(pb, 1<<3); /* set ActionScript v3/AVM2 flag */
put_swf_end_tag(s);
}
/* define a shape with the jpeg inside */
if (video_enc && (video_enc->codec_id == CODEC_ID_VP6F ||
video_enc->codec_id == CODEC_ID_FLV1)) {
@ -787,3 +800,17 @@ AVOutputFormat swf_muxer = {
swf_write_trailer,
};
#endif
#ifdef CONFIG_AVM2_MUXER
AVOutputFormat avm2_muxer = {
"avm2",
"Flash 9 (AVM2) format",
"application/x-shockwave-flash",
"swf",
sizeof(SWFContext),
CODEC_ID_MP3,
CODEC_ID_FLV1,
swf_write_header,
swf_write_packet,
swf_write_trailer,
};
#endif