---
libavformat/flvenc.c | 146 +++++++++++++++++++++++++++-----------------------
1 files changed, 79 insertions(+), 67 deletions(-)
diff --git a/libavformat/flvenc.c b/libavformat/flvenc.c
index 62756a1..8f99a7e 100644
--- a/libavformat/flvenc.c
+++ b/libavformat/flvenc.c
@@ -81,16 +81,16 @@ static int get_audio_flags(AVFormatContext *s,
AVCodecContext *enc)
}
return FLV_CODECID_SPEEX | FLV_SAMPLERATE_11025HZ |
FLV_SAMPLESSIZE_16BIT;
} else {
- switch (enc->sample_rate) {
+ switch (enc->sample_rate) {
case 44100:
flags |= FLV_SAMPLERATE_44100HZ;
- break;
+ break;
case 22050:
flags |= FLV_SAMPLERATE_22050HZ;
- break;
+ break;
case 11025:
flags |= FLV_SAMPLERATE_11025HZ;
- break;
+ break;
case 16000: //nellymoser only
case 8000: //nellymoser only
case 5512: //not mp3
@@ -99,9 +99,11 @@ static int get_audio_flags(AVFormatContext *s,
AVCodecContext *enc)
break;
}
default:
- av_log(s, AV_LOG_ERROR, "flv does not support that sample rate,
choose from (44100, 22050, 11025).\n");
+ av_log(s, AV_LOG_ERROR,
+ "flv does not support that sample rate, "
+ "choose from (44100, 22050, 11025).\n");
return -1;
- }
+ }
}
if (enc->channels > 1) {
@@ -151,16 +153,17 @@ static void put_amf_string(AVIOContext *pb, const char
*str)
avio_write(pb, str, len);
}
-static void put_avc_eos_tag(AVIOContext *pb, unsigned ts) {
+static void put_avc_eos_tag(AVIOContext *pb, unsigned ts)
+{
avio_w8(pb, FLV_TAG_TYPE_VIDEO);
- avio_wb24(pb, 5); /* Tag Data Size */
- avio_wb24(pb, ts); /* lower 24 bits of timestamp in ms*/
- avio_w8(pb, (ts >> 24) & 0x7F); /* MSB of ts in ms*/
- avio_wb24(pb, 0); /* StreamId = 0 */
- avio_w8(pb, 23); /* ub[4] FrameType = 1, ub[4] CodecId = 7 */
- avio_w8(pb, 2); /* AVC end of sequence */
- avio_wb24(pb, 0); /* Always 0 for AVC EOS. */
- avio_wb32(pb, 16); /* Size of FLV tag */
+ avio_wb24(pb, 5); /* Tag Data Size */
+ avio_wb24(pb, ts); /* lower 24 bits of timestamp in ms*/
+ avio_w8(pb, (ts >> 24) & 0x7F); /* MSB of ts in ms*/
+ avio_wb24(pb, 0); /* StreamId = 0 */
+ avio_w8(pb, 23); /* ub[4] FrameType = 1, ub[4] CodecId = 7
*/
+ avio_w8(pb, 2); /* AVC end of sequence */
+ avio_wb24(pb, 0); /* Always 0 for AVC EOS. */
+ avio_wb32(pb, 16); /* Size of FLV tag */
}
static void put_amf_double(AVIOContext *pb, double d)
@@ -169,7 +172,8 @@ static void put_amf_double(AVIOContext *pb, double d)
avio_wb64(pb, av_double2int(d));
}
-static void put_amf_bool(AVIOContext *pb, int b) {
+static void put_amf_bool(AVIOContext *pb, int b)
+{
avio_w8(pb, AMF_DATA_TYPE_BOOL);
avio_w8(pb, !!b);
}
@@ -184,34 +188,35 @@ static int flv_write_header(AVFormatContext *s)
int64_t metadata_size_pos, data_size, metadata_count_pos;
AVDictionaryEntry *tag = NULL;
- for(i=0; i<s->nb_streams; i++){
+ for (i=0; i<s->nb_streams; i++) {
AVCodecContext *enc = s->streams[i]->codec;
FLVStreamContext *sc;
switch (enc->codec_type) {
case AVMEDIA_TYPE_VIDEO:
- if (s->streams[i]->r_frame_rate.den &&
s->streams[i]->r_frame_rate.num) {
+ if (s->streams[i]->r_frame_rate.den &&
+ s->streams[i]->r_frame_rate.num) {
framerate = av_q2d(s->streams[i]->r_frame_rate);
} else {
- framerate = 1/av_q2d(s->streams[i]->codec->time_base);
+ framerate = 1 / av_q2d(s->streams[i]->codec->time_base);
}
video_enc = enc;
if(enc->codec_tag == 0) {
av_log(s, AV_LOG_ERROR, "video codec not compatible with
flv\n");
return -1;
}
- break;
+ break;
case AVMEDIA_TYPE_AUDIO:
audio_enc = enc;
if (get_audio_flags(s, enc) < 0)
return AVERROR_INVALIDDATA;
- break;
+ break;
case AVMEDIA_TYPE_DATA:
if (enc->codec_id != CODEC_ID_TEXT) {
av_log(s, AV_LOG_ERROR, "codec not compatible with flv\n");
return AVERROR_INVALIDDATA;
}
data_enc = enc;
- break;
+ break;
default:
av_log(s, AV_LOG_ERROR, "codec not compatible with flv\n");
return -1;
@@ -224,29 +229,30 @@ static int flv_write_header(AVFormatContext *s)
s->streams[i]->priv_data = sc;
sc->last_ts = -1;
}
+
flv->delay = AV_NOPTS_VALUE;
avio_write(pb, "FLV", 3);
- avio_w8(pb,1);
+ avio_w8(pb, 1);
avio_w8(pb, FLV_HEADER_FLAG_HASAUDIO * !!audio_enc
- + FLV_HEADER_FLAG_HASVIDEO * !!video_enc);
- avio_wb32(pb,9);
- avio_wb32(pb,0);
-
- for(i=0; i<s->nb_streams; i++){
- if(s->streams[i]->codec->codec_tag == 5){
- avio_w8(pb,8); // message type
- avio_wb24(pb,0); // include flags
- avio_wb24(pb,0); // time stamp
- avio_wb32(pb,0); // reserved
- avio_wb32(pb,11); // size
- flv->reserved=5;
+ + FLV_HEADER_FLAG_HASVIDEO * !!video_enc);
+ avio_wb32(pb, 9);
+ avio_wb32(pb, 0);
+
+ for (i = 0; i < s->nb_streams; i++) {
+ if (s->streams[i]->codec->codec_tag == 5) {
+ avio_w8(pb, 8); // message type
+ avio_wb24(pb, 0); // include flags
+ avio_wb24(pb, 0); // time stamp
+ avio_wb32(pb, 0); // reserved
+ avio_wb32(pb, 11); // size
+ flv->reserved = 5;
}
}
/* write meta_tag */
avio_w8(pb, 18); // tag type META
- metadata_size_pos= avio_tell(pb);
+ metadata_size_pos = avio_tell(pb);
avio_wb24(pb, 0); // size of data part (sum of all parts below)
avio_wb24(pb, 0); // time stamp
avio_wb32(pb, 0); // reserved
@@ -269,9 +275,11 @@ static int flv_write_header(AVFormatContext *s)
put_amf_string(pb, "duration");
flv->duration_offset= avio_tell(pb);
- put_amf_double(pb, s->duration / AV_TIME_BASE); // fill in the guessed
duration, it'll be corrected later if incorrect
- if(video_enc){
+ // fill in the guessed duration, it'll be corrected later if incorrect
+ put_amf_double(pb, s->duration / AV_TIME_BASE);
+
+ if (video_enc) {
put_amf_string(pb, "width");
put_amf_double(pb, video_enc->width);
@@ -288,7 +296,7 @@ static int flv_write_header(AVFormatContext *s)
put_amf_double(pb, video_enc->codec_tag);
}
- if(audio_enc){
+ if (audio_enc) {
put_amf_string(pb, "audiodatarate");
put_amf_double(pb, audio_enc->bit_rate / 1024.0);
@@ -410,40 +418,40 @@ static int flv_write_packet(AVFormatContext *s, AVPacket
*pkt)
// av_log(s, AV_LOG_DEBUG, "type:%d pts: %"PRId64" size:%d\n",
enc->codec_type, timestamp, size);
- if(enc->codec_id == CODEC_ID_VP6 || enc->codec_id == CODEC_ID_VP6F ||
- enc->codec_id == CODEC_ID_AAC)
- flags_size= 2;
+ if (enc->codec_id == CODEC_ID_VP6 || enc->codec_id == CODEC_ID_VP6F ||
+ enc->codec_id == CODEC_ID_AAC)
+ flags_size = 2;
else if(enc->codec_id == CODEC_ID_H264)
- flags_size= 5;
+ flags_size = 5;
else
- flags_size= 1;
+ flags_size = 1;
switch (enc->codec_type) {
case AVMEDIA_TYPE_VIDEO:
avio_w8(pb, FLV_TAG_TYPE_VIDEO);
flags = enc->codec_tag;
- if(flags == 0) {
+ if (flags == 0) {
av_log(s, AV_LOG_ERROR, "video codec %X not compatible with
flv\n",enc->codec_id);
return -1;
}
flags |= pkt->flags & AV_PKT_FLAG_KEY ? FLV_FRAME_KEY :
FLV_FRAME_INTER;
- break;
+ break;
case AVMEDIA_TYPE_AUDIO:
flags = get_audio_flags(s, enc);
assert(size);
avio_w8(pb, FLV_TAG_TYPE_AUDIO);
- break;
-
+ break;
case AVMEDIA_TYPE_DATA:
avio_w8(pb, FLV_TAG_TYPE_META);
- break;
+ break;
default:
return AVERROR(EINVAL);
}
+
if (enc->codec_id == CODEC_ID_H264) {
/* check if extradata looks like MP4 */
if (enc->extradata_size > 0 && *(uint8_t*)enc->extradata != 1) {
@@ -451,8 +459,10 @@ static int flv_write_packet(AVFormatContext *s, AVPacket
*pkt)
return -1;
}
}
+
if (flv->delay == AV_NOPTS_VALUE)
flv->delay = -pkt->dts;
+
if (pkt->dts < -flv->delay) {
av_log(s, AV_LOG_WARNING, "Packets are not in the proper order with "
"respect to DTS\n");
@@ -471,10 +481,10 @@ static int flv_write_packet(AVFormatContext *s, AVPacket
*pkt)
if (sc->last_ts < ts)
sc->last_ts = ts;
- avio_wb24(pb,size + flags_size);
- avio_wb24(pb,ts);
- avio_w8(pb,(ts >> 24) & 0x7F); // timestamps are 32bits _signed_
- avio_wb24(pb,flv->reserved);
+ avio_wb24(pb, size + flags_size);
+ avio_wb24(pb, ts);
+ avio_w8(pb, (ts >> 24) & 0x7F); // timestamps are 32bits _signed_
+ avio_wb24(pb, flv->reserved);
if (enc->codec_type == AVMEDIA_TYPE_DATA) {
int data_size;
@@ -498,23 +508,25 @@ static int flv_write_packet(AVFormatContext *s, AVPacket
*pkt)
avio_seek(pb, data_size + 10 - 3, SEEK_CUR);
avio_wb32(pb, data_size + 11);
} else {
- avio_w8(pb,flags);
- if (enc->codec_id == CODEC_ID_VP6)
- avio_w8(pb,0);
- if (enc->codec_id == CODEC_ID_VP6F)
- avio_w8(pb, enc->extradata_size ? enc->extradata[0] : 0);
- else if (enc->codec_id == CODEC_ID_AAC)
- avio_w8(pb,1); // AAC raw
- else if (enc->codec_id == CODEC_ID_H264) {
- avio_w8(pb,1); // AVC NALU
- avio_wb24(pb,pkt->pts - pkt->dts);
- }
+ avio_w8(pb,flags);
+ if (enc->codec_id == CODEC_ID_VP6)
+ avio_w8(pb, 0);
+ if (enc->codec_id == CODEC_ID_VP6F)
+ avio_w8(pb, enc->extradata_size ? enc->extradata[0] : 0);
+ else if (enc->codec_id == CODEC_ID_AAC)
+ avio_w8(pb, 1); // AAC raw
+ else if (enc->codec_id == CODEC_ID_H264) {
+ avio_w8(pb, 1); // AVC NALU
+ avio_wb24(pb, pkt->pts - pkt->dts);
+ }
- avio_write(pb, data ? data : pkt->data, size);
+ avio_write(pb, data ? data : pkt->data, size);
- avio_wb32(pb,size+flags_size+11); // previous tag size
- flv->duration = FFMAX(flv->duration, pkt->pts + flv->delay +
pkt->duration);
+ avio_wb32(pb, size + flags_size + 11); // previous tag size
+ flv->duration =
+ FFMAX(flv->duration, pkt->pts + flv->delay + pkt->duration);
}
+
avio_flush(pb);
av_free(data);
--
1.7.8.rc1
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