/*
* FLV muxer
- * Copyright (c) 2003 The FFmpeg Project.
+ * Copyright (c) 2003 The FFmpeg Project
*
* This file is part of FFmpeg.
*
*/
#include "avformat.h"
#include "flv.h"
-#include "riff.h"
+#include "internal.h"
#include "avc.h"
+#include "metadata.h"
#undef NDEBUG
#include <assert.h>
static const AVCodecTag flv_video_codec_ids[] = {
{CODEC_ID_FLV1, FLV_CODECID_H263 },
{CODEC_ID_FLASHSV, FLV_CODECID_SCREEN},
+ {CODEC_ID_FLASHSV2, FLV_CODECID_SCREEN2},
{CODEC_ID_VP6F, FLV_CODECID_VP6 },
{CODEC_ID_VP6, FLV_CODECID_VP6 },
{CODEC_ID_H264, FLV_CODECID_H264 },
static const AVCodecTag flv_audio_codec_ids[] = {
{CODEC_ID_MP3, FLV_CODECID_MP3 >> FLV_AUDIO_CODECID_OFFSET},
- {CODEC_ID_PCM_S8, FLV_CODECID_PCM >> FLV_AUDIO_CODECID_OFFSET},
+ {CODEC_ID_PCM_U8, FLV_CODECID_PCM >> FLV_AUDIO_CODECID_OFFSET},
{CODEC_ID_PCM_S16BE, FLV_CODECID_PCM >> FLV_AUDIO_CODECID_OFFSET},
{CODEC_ID_PCM_S16LE, FLV_CODECID_PCM_LE >> FLV_AUDIO_CODECID_OFFSET},
{CODEC_ID_ADPCM_SWF, FLV_CODECID_ADPCM >> FLV_AUDIO_CODECID_OFFSET},
{CODEC_ID_AAC, FLV_CODECID_AAC >> FLV_AUDIO_CODECID_OFFSET},
{CODEC_ID_NELLYMOSER, FLV_CODECID_NELLYMOSER >> FLV_AUDIO_CODECID_OFFSET},
+ {CODEC_ID_SPEEX, FLV_CODECID_SPEEX >> FLV_AUDIO_CODECID_OFFSET},
{CODEC_ID_NONE, 0}
};
typedef struct FLVContext {
int reserved;
- offset_t duration_offset;
- offset_t filesize_offset;
+ int64_t duration_offset;
+ int64_t filesize_offset;
int64_t duration;
int delay; ///< first dts delay for AVC
+ int64_t last_video_ts;
} FLVContext;
static int get_audio_flags(AVCodecContext *enc){
- int flags = (enc->bits_per_sample == 16) ? FLV_SAMPLESSIZE_16BIT : FLV_SAMPLESSIZE_8BIT;
+ int flags = (enc->bits_per_coded_sample == 16) ? FLV_SAMPLESSIZE_16BIT : FLV_SAMPLESSIZE_8BIT;
if (enc->codec_id == CODEC_ID_AAC) // specs force these parameters
return FLV_CODECID_AAC | FLV_SAMPLERATE_44100HZ | FLV_SAMPLESSIZE_16BIT | FLV_STEREO;
- else {
+ else if (enc->codec_id == CODEC_ID_SPEEX) {
+ if (enc->sample_rate != 16000) {
+ av_log(enc, AV_LOG_ERROR, "flv only supports wideband (16kHz) Speex audio\n");
+ return -1;
+ }
+ if (enc->channels != 1) {
+ av_log(enc, AV_LOG_ERROR, "flv only supports mono Speex audio\n");
+ return -1;
+ }
+ if (enc->frame_size / 320 > 8) {
+ av_log(enc, AV_LOG_WARNING, "Warning: Speex stream has more than "
+ "8 frames per packet. Adobe Flash "
+ "Player cannot handle this!\n");
+ }
+ return FLV_CODECID_SPEEX | FLV_SAMPLERATE_11025HZ | FLV_SAMPLESSIZE_16BIT;
+ } else {
switch (enc->sample_rate) {
case 44100:
flags |= FLV_SAMPLERATE_44100HZ;
case CODEC_ID_MP3:
flags |= FLV_CODECID_MP3 | FLV_SAMPLESSIZE_16BIT;
break;
- case CODEC_ID_PCM_S8:
+ case CODEC_ID_PCM_U8:
flags |= FLV_CODECID_PCM | FLV_SAMPLESSIZE_8BIT;
break;
case CODEC_ID_PCM_S16BE:
flags |= FLV_CODECID_ADPCM | FLV_SAMPLESSIZE_16BIT;
break;
case CODEC_ID_NELLYMOSER:
- flags |= FLV_CODECID_NELLYMOSER | FLV_SAMPLESSIZE_16BIT;
+ if (enc->sample_rate == 8000) {
+ flags |= FLV_CODECID_NELLYMOSER_8KHZ_MONO | FLV_SAMPLESSIZE_16BIT;
+ } else {
+ flags |= FLV_CODECID_NELLYMOSER | FLV_SAMPLESSIZE_16BIT;
+ }
break;
case 0:
flags |= enc->codec_tag<<4;
return flags;
}
-static void put_amf_string(ByteIOContext *pb, const char *str)
+static void put_amf_string(AVIOContext *pb, const char *str)
{
size_t len = strlen(str);
- put_be16(pb, len);
- put_buffer(pb, str, len);
+ avio_wb16(pb, len);
+ avio_write(pb, str, len);
}
-static void put_amf_double(ByteIOContext *pb, double d)
+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 */
+}
+
+static void put_amf_double(AVIOContext *pb, double d)
{
- put_byte(pb, AMF_DATA_TYPE_NUMBER);
- put_be64(pb, av_dbl2int(d));
+ avio_w8(pb, AMF_DATA_TYPE_NUMBER);
+ avio_wb64(pb, av_dbl2int(d));
}
-static void put_amf_bool(ByteIOContext *pb, int b) {
- put_byte(pb, AMF_DATA_TYPE_BOOL);
- put_byte(pb, !!b);
+static void put_amf_bool(AVIOContext *pb, int b) {
+ avio_w8(pb, AMF_DATA_TYPE_BOOL);
+ avio_w8(pb, !!b);
}
static int flv_write_header(AVFormatContext *s)
{
- ByteIOContext *pb = s->pb;
+ AVIOContext *pb = s->pb;
FLVContext *flv = s->priv_data;
AVCodecContext *audio_enc = NULL, *video_enc = NULL;
int i;
double framerate = 0.0;
int metadata_size_pos, data_size;
+ AVMetadataTag *tag = NULL;
for(i=0; i<s->nb_streams; i++){
AVCodecContext *enc = s->streams[i]->codec;
- if (enc->codec_type == CODEC_TYPE_VIDEO) {
+ if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
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 {
}
av_set_pts_info(s->streams[i], 32, 1, 1000); /* 32 bit pts in ms */
}
- put_tag(pb,"FLV");
- put_byte(pb,1);
- put_byte(pb, FLV_HEADER_FLAG_HASAUDIO * !!audio_enc
+ avio_write(pb, "FLV", 3);
+ avio_w8(pb,1);
+ avio_w8(pb, FLV_HEADER_FLAG_HASAUDIO * !!audio_enc
+ FLV_HEADER_FLAG_HASVIDEO * !!video_enc);
- put_be32(pb,9);
- put_be32(pb,0);
+ avio_wb32(pb,9);
+ avio_wb32(pb,0);
for(i=0; i<s->nb_streams; i++){
if(s->streams[i]->codec->codec_tag == 5){
- put_byte(pb,8); // message type
- put_be24(pb,0); // include flags
- put_be24(pb,0); // time stamp
- put_be32(pb,0); // reserved
- put_be32(pb,11); // size
+ 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->last_video_ts = -1;
+
/* write meta_tag */
- put_byte(pb, 18); // tag type META
+ avio_w8(pb, 18); // tag type META
metadata_size_pos= url_ftell(pb);
- put_be24(pb, 0); // size of data part (sum of all parts below)
- put_be24(pb, 0); // time stamp
- put_be32(pb, 0); // reserved
+ avio_wb24(pb, 0); // size of data part (sum of all parts below)
+ avio_wb24(pb, 0); // time stamp
+ avio_wb32(pb, 0); // reserved
/* now data of data_size size */
/* first event name as a string */
- put_byte(pb, AMF_DATA_TYPE_STRING);
+ avio_w8(pb, AMF_DATA_TYPE_STRING);
put_amf_string(pb, "onMetaData"); // 12 bytes
/* mixed array (hash) with size and string/type/data tuples */
- put_byte(pb, AMF_DATA_TYPE_MIXEDARRAY);
- put_be32(pb, 5*!!video_enc + 4*!!audio_enc + 2); // +2 for duration and file size
+ avio_w8(pb, AMF_DATA_TYPE_MIXEDARRAY);
+ avio_wb32(pb, 5*!!video_enc + 5*!!audio_enc + 2); // +2 for duration and file size
put_amf_string(pb, "duration");
flv->duration_offset= url_ftell(pb);
- put_amf_double(pb, 0); // delayed write
+ put_amf_double(pb, s->duration / AV_TIME_BASE); // fill in the guessed duration, it'll be corrected later if incorrect
if(video_enc){
put_amf_string(pb, "width");
put_amf_double(pb, video_enc->height);
put_amf_string(pb, "videodatarate");
- put_amf_double(pb, s->bit_rate / 1024.0);
+ put_amf_double(pb, video_enc->bit_rate / 1024.0);
put_amf_string(pb, "framerate");
put_amf_double(pb, framerate);
}
if(audio_enc){
+ put_amf_string(pb, "audiodatarate");
+ put_amf_double(pb, audio_enc->bit_rate / 1024.0);
+
put_amf_string(pb, "audiosamplerate");
put_amf_double(pb, audio_enc->sample_rate);
put_amf_string(pb, "audiosamplesize");
- put_amf_double(pb, audio_enc->codec_id == CODEC_ID_PCM_S8 ? 8 : 16);
+ put_amf_double(pb, audio_enc->codec_id == CODEC_ID_PCM_U8 ? 8 : 16);
put_amf_string(pb, "stereo");
put_amf_bool(pb, audio_enc->channels == 2);
put_amf_double(pb, audio_enc->codec_tag);
}
+ while ((tag = av_metadata_get(s->metadata, "", tag, AV_METADATA_IGNORE_SUFFIX))) {
+ put_amf_string(pb, tag->key);
+ avio_w8(pb, AMF_DATA_TYPE_STRING);
+ put_amf_string(pb, tag->value);
+ }
+
put_amf_string(pb, "filesize");
flv->filesize_offset= url_ftell(pb);
put_amf_double(pb, 0); // delayed write
put_amf_string(pb, "");
- put_byte(pb, AMF_END_OF_OBJECT);
+ avio_w8(pb, AMF_END_OF_OBJECT);
/* write total size of tag */
data_size= url_ftell(pb) - metadata_size_pos - 10;
url_fseek(pb, metadata_size_pos, SEEK_SET);
- put_be24(pb, data_size);
+ avio_wb24(pb, data_size);
url_fseek(pb, data_size + 10 - 3, SEEK_CUR);
- put_be32(pb, data_size + 11);
+ avio_wb32(pb, data_size + 11);
for (i = 0; i < s->nb_streams; i++) {
AVCodecContext *enc = s->streams[i]->codec;
if (enc->codec_id == CODEC_ID_AAC || enc->codec_id == CODEC_ID_H264) {
- offset_t pos;
- put_byte(pb, enc->codec_type == CODEC_TYPE_VIDEO ?
+ int64_t pos;
+ avio_w8(pb, enc->codec_type == AVMEDIA_TYPE_VIDEO ?
FLV_TAG_TYPE_VIDEO : FLV_TAG_TYPE_AUDIO);
- put_be24(pb, 0); // size patched later
- put_be24(pb, 0); // ts
- put_byte(pb, 0); // ts ext
- put_be24(pb, 0); // streamid
+ avio_wb24(pb, 0); // size patched later
+ avio_wb24(pb, 0); // ts
+ avio_w8(pb, 0); // ts ext
+ avio_wb24(pb, 0); // streamid
pos = url_ftell(pb);
if (enc->codec_id == CODEC_ID_AAC) {
- put_byte(pb, get_audio_flags(enc));
- put_byte(pb, 0); // AAC sequence header
- put_buffer(pb, enc->extradata, enc->extradata_size);
+ avio_w8(pb, get_audio_flags(enc));
+ avio_w8(pb, 0); // AAC sequence header
+ avio_write(pb, enc->extradata, enc->extradata_size);
} else {
- put_byte(pb, enc->codec_tag | FLV_FRAME_KEY); // flags
- put_byte(pb, 0); // AVC sequence header
- put_be24(pb, 0); // composition time
+ avio_w8(pb, enc->codec_tag | FLV_FRAME_KEY); // flags
+ avio_w8(pb, 0); // AVC sequence header
+ avio_wb24(pb, 0); // composition time
ff_isom_write_avcc(pb, enc->extradata, enc->extradata_size);
}
data_size = url_ftell(pb) - pos;
url_fseek(pb, -data_size - 10, SEEK_CUR);
- put_be24(pb, data_size);
+ avio_wb24(pb, data_size);
url_fseek(pb, data_size + 10 - 3, SEEK_CUR);
- put_be32(pb, data_size + 11); // previous tag size
+ avio_wb32(pb, data_size + 11); // previous tag size
}
}
{
int64_t file_size;
- ByteIOContext *pb = s->pb;
+ AVIOContext *pb = s->pb;
FLVContext *flv = s->priv_data;
+ int i;
+
+ /* Add EOS tag */
+ for (i = 0; i < s->nb_streams; i++) {
+ AVCodecContext *enc = s->streams[i]->codec;
+ if (enc->codec_type == AVMEDIA_TYPE_VIDEO &&
+ enc->codec_id == CODEC_ID_H264) {
+ put_avc_eos_tag(pb, flv->last_video_ts);
+ }
+ }
file_size = url_ftell(pb);
static int flv_write_packet(AVFormatContext *s, AVPacket *pkt)
{
- ByteIOContext *pb = s->pb;
+ AVIOContext *pb = s->pb;
AVCodecContext *enc = s->streams[pkt->stream_index]->codec;
FLVContext *flv = s->priv_data;
unsigned ts;
int size= pkt->size;
+ uint8_t *data= NULL;
int flags, flags_size;
// av_log(s, AV_LOG_DEBUG, "type:%d pts: %"PRId64" size:%d\n", enc->codec_type, timestamp, size);
else
flags_size= 1;
- if (enc->codec_type == CODEC_TYPE_VIDEO) {
- put_byte(pb, FLV_TAG_TYPE_VIDEO);
+ if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
+ avio_w8(pb, FLV_TAG_TYPE_VIDEO);
flags = enc->codec_tag;
if(flags == 0) {
return -1;
}
- flags |= pkt->flags & PKT_FLAG_KEY ? FLV_FRAME_KEY : FLV_FRAME_INTER;
+ flags |= pkt->flags & AV_PKT_FLAG_KEY ? FLV_FRAME_KEY : FLV_FRAME_INTER;
} else {
- assert(enc->codec_type == CODEC_TYPE_AUDIO);
+ assert(enc->codec_type == AVMEDIA_TYPE_AUDIO);
flags = get_audio_flags(enc);
assert(size);
- put_byte(pb, FLV_TAG_TYPE_AUDIO);
+ avio_w8(pb, FLV_TAG_TYPE_AUDIO);
}
- if (enc->codec_id == CODEC_ID_H264 &&
+ if (enc->codec_id == CODEC_ID_H264) {
/* check if extradata looks like mp4 formated */
- enc->extradata_size > 0 && *(uint8_t*)enc->extradata != 1) {
- if (ff_avc_parse_nal_units(pkt->data, &pkt->data, &pkt->size) < 0)
- return -1;
- assert(pkt->size);
- size = pkt->size;
- /* cast needed to get negative value */
- if (!flv->delay && (int32_t)pkt->dts < 0)
- flv->delay = -(int32_t)pkt->dts;
+ if (enc->extradata_size > 0 && *(uint8_t*)enc->extradata != 1) {
+ if (ff_avc_parse_nal_units_buf(pkt->data, &data, &size) < 0)
+ return -1;
+ }
+ if (!flv->delay && pkt->dts < 0)
+ flv->delay = -pkt->dts;
}
ts = pkt->dts + flv->delay; // add delay to force positive dts
- put_be24(pb,size + flags_size);
- put_be24(pb,ts);
- put_byte(pb,ts >> 24);
- put_be24(pb,flv->reserved);
- put_byte(pb,flags);
+ if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
+ if (flv->last_video_ts < ts)
+ flv->last_video_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_w8(pb,flags);
if (enc->codec_id == CODEC_ID_VP6)
- put_byte(pb,0);
+ avio_w8(pb,0);
if (enc->codec_id == CODEC_ID_VP6F)
- put_byte(pb, enc->extradata_size ? enc->extradata[0] : 0);
+ avio_w8(pb, enc->extradata_size ? enc->extradata[0] : 0);
else if (enc->codec_id == CODEC_ID_AAC)
- put_byte(pb,1); // AAC raw
+ avio_w8(pb,1); // AAC raw
else if (enc->codec_id == CODEC_ID_H264) {
- put_byte(pb,1); // AVC NALU
- put_be24(pb,pkt->pts - (int32_t)pkt->dts);
+ avio_w8(pb,1); // AVC NALU
+ avio_wb24(pb,pkt->pts - pkt->dts);
}
- put_buffer(pb, pkt->data, size);
- put_be32(pb,size+flags_size+11); // previous tag 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);
put_flush_packet(pb);
+
+ av_free(data);
+
return 0;
}
-AVOutputFormat flv_muxer = {
+AVOutputFormat ff_flv_muxer = {
"flv",
NULL_IF_CONFIG_SMALL("FLV format"),
"video/x-flv",
"flv",
sizeof(FLVContext),
-#ifdef CONFIG_LIBMP3LAME
+#if CONFIG_LIBMP3LAME
CODEC_ID_MP3,
#else // CONFIG_LIBMP3LAME
CODEC_ID_ADPCM_SWF,
flv_write_header,
flv_write_packet,
flv_write_trailer,
- .codec_tag= (const AVCodecTag*[]){flv_video_codec_ids, flv_audio_codec_ids, 0},
- .flags= AVFMT_GLOBALHEADER,
+ .codec_tag= (const AVCodecTag* const []){flv_video_codec_ids, flv_audio_codec_ids, 0},
+ .flags= AVFMT_GLOBALHEADER | AVFMT_VARIABLE_FPS,
};
projects / ffmpeg / blobdiff