[FFmpeg-devel] [PATCH 4/4] mxfenc: support smpte dv codecs
Matthieu Bouron
matthieu.bouron at gmail.com
Sun May 27 14:21:42 CEST 2012
---
Hi,
This patch introduces support for smpte dv codecs in mxf container.
Field dominance flag is not set since the dv encoder does not output correct
ff/fs value in vsc pack (maybe i'm missing something here).
Regards,
Matthieu
---
libavformat/mxfenc.c | 120 +++++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 119 insertions(+), 1 deletion(-)
diff --git a/libavformat/mxfenc.c b/libavformat/mxfenc.c
index fce8446..0c39acb 100644
--- a/libavformat/mxfenc.c
+++ b/libavformat/mxfenc.c
@@ -93,6 +93,7 @@ static const struct {
{ CODEC_ID_MPEG2VIDEO, 0 },
{ CODEC_ID_PCM_S24LE, 1 },
{ CODEC_ID_PCM_S16LE, 1 },
+ { CODEC_ID_DVVIDEO, 15 },
{ CODEC_ID_NONE }
};
@@ -169,6 +170,51 @@ static const MXFContainerEssenceEntry mxf_essence_container_uls[] = {
{ 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
mxf_write_generic_sound_desc },
+ // DV Unknwon 15
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x7F,0x01 },
+ { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
+ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x00,0x00,0x00 },
+ mxf_write_cdci_desc },
+ // DV25 525/60
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x40,0x01 },
+ { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
+ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x01,0x00 },
+ mxf_write_cdci_desc },
+ // DV25 625/50
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x41,0x01 },
+ { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
+ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x02,0x00 },
+ mxf_write_cdci_desc },
+ // DV50 525/60
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x50,0x01 },
+ { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
+ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x03,0x00 },
+ mxf_write_cdci_desc },
+ // DV50 625/50
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x51,0x01 },
+ { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
+ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x04,0x00 },
+ mxf_write_cdci_desc },
+ // DV100 1080/60
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x60,0x01 },
+ { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
+ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x05,0x00 },
+ mxf_write_cdci_desc },
+ // DV100 1080/50
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x61,0x01 },
+ { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
+ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x06,0x00 },
+ mxf_write_cdci_desc },
+ // DV100 720/60
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x62,0x01 },
+ { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
+ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x07,0x00 },
+ mxf_write_cdci_desc },
+ // DV100 720/50
+ { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x63,0x01 },
+ { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
+ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x08,0x00 },
+ mxf_write_cdci_desc },
{ { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
{ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
{ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
@@ -1292,6 +1338,70 @@ static void mxf_write_partition(AVFormatContext *s, int bodysid,
avio_flush(pb);
}
+static int mxf_parse_dv_frame(AVFormatContext *s, AVStream *st, AVPacket *pkt)
+{
+ MXFContext *mxf = s->priv_data;
+ MXFStreamContext *sc = st->priv_data;
+ uint8_t *vs_pack = pkt->data + 80*5 + 48;
+ uint8_t *vsc_pack = pkt->data + 80*5 + 53;
+ int stype = vs_pack[3] & 0x1f;
+ int pal = (vs_pack[3] >> 5) & 0x1;
+ int i, ul_index, frame_size;
+
+ if (mxf->header_written)
+ return 1;
+
+ if ((vs_pack[2] & 0x07) == 0x02)
+ sc->aspect_ratio = (AVRational){ 16, 9 };
+ else
+ sc->aspect_ratio = (AVRational){ 4, 3 };
+
+ sc->interlaced = (vsc_pack[3] >> 4) & 0x01;
+ // TODO: fix dv encoder to set proper FF/FS value in VSC pack
+ // and set field dominance accordingly
+ // av_log(s, AV_LOG_DEBUG, "DV vsc pack ff/ss = %x\n", vsc_pack[2] >> 6);
+
+ switch (stype) {
+ case 0x18: // DV100 720p
+ ul_index = 6 + pal;
+ frame_size = pal ? 288000 : 240000;
+ if (sc->interlaced) {
+ av_log(s, AV_LOG_ERROR, "source marked as interlaced but codec profile is progressive");
+ sc->interlaced = 0;
+ }
+ break;
+ case 0x14: // DV100 1080i
+ ul_index = 4 + pal;
+ frame_size = pal ? 576000 : 480000;
+ break;
+ case 0x04: // DV50
+ ul_index = 2 + pal;
+ frame_size = pal ? 288000 : 240000;
+ break;
+ default: // DV25
+ ul_index = 0 + pal;
+ frame_size = pal ? 144000 : 120000;
+ }
+
+ sc->index = ul_index + 16;
+ sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
+
+ mxf->edit_unit_byte_count = KAG_SIZE;
+ for (i = 0; i < s->nb_streams; i++) {
+ AVStream *st = s->streams[i];
+ MXFStreamContext *sc = st->priv_data;
+ if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
+ mxf->edit_unit_byte_count += 16 + 4 + sc->aic.samples[0]*sc->aic.sample_size;
+ mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
+ } else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
+ mxf->edit_unit_byte_count += 16 + 4 + frame_size;
+ mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
+ }
+ }
+
+ return 1;
+}
+
static const UID mxf_mpeg2_codec_uls[] = {
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x10,0x00 }, // MP-ML I-Frame
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, // MP-ML Long GOP
@@ -1536,7 +1646,10 @@ static int mxf_write_header(AVFormatContext *s)
MXFStreamContext *sc = s->streams[i]->priv_data;
// update element count
sc->track_essence_element_key[13] = present[sc->index];
- sc->order = AV_RB32(sc->track_essence_element_key+12);
+ if (sc->track_essence_element_key[12] == 0x18) // DV
+ sc->order = (0x15 << 24) | AV_RB32(sc->track_essence_element_key+13);
+ else
+ sc->order = AV_RB32(sc->track_essence_element_key+12);
}
if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
@@ -1690,6 +1803,11 @@ static int mxf_write_packet(AVFormatContext *s, AVPacket *pkt)
av_log(s, AV_LOG_ERROR, "could not get mpeg2 profile and level\n");
return -1;
}
+ } else if (st->codec->codec_id == CODEC_ID_DVVIDEO) {
+ if (!mxf_parse_dv_frame(s, st, pkt)) {
+ av_log(s, AV_LOG_ERROR, "could not get dv profile\n");
+ return -1;
+ }
}
if (!mxf->header_written) {
--
1.7.10
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