diff --git a/configure b/configure index 585caa2daa..0972a9e637 100755 --- a/configure +++ b/configure @@ -431,21 +431,21 @@ fi needmdynamicnopic="no" if test $targetos = Darwin; then if test -n "`$cc -v 2>&1 | grep xlc`"; then - CFLAGS="-qpdf2 -qlanglvl=extc99 -qmaxmem=-1 -qarch=auto -qtune=auto" + CFLAGS="$CFLAGS -qpdf2 -qlanglvl=extc99 -qmaxmem=-1 -qarch=auto -qtune=auto" else gcc_version="`$cc -v 2>&1 | grep version | cut -d ' ' -f3-`" case "$gcc_version" in *2.95*) - CFLAGS="-no-cpp-precomp -pipe -fomit-frame-pointer" + CFLAGS="$CFLAGS -no-cpp-precomp -pipe -fomit-frame-pointer" ;; *3.*) - CFLAGS="-no-cpp-precomp -pipe -fomit-frame-pointer -force_cpusubtype_ALL -Wno-sign-compare" + CFLAGS="$CFLAGS -no-cpp-precomp -pipe -fomit-frame-pointer -force_cpusubtype_ALL -Wno-sign-compare" if test "$lshared" = no; then needmdynamicnopic="yes" fi ;; *) - CFLAGS="-no-cpp-precomp -pipe -fomit-frame-pointer" + CFLAGS="$CFLAGS -no-cpp-precomp -pipe -fomit-frame-pointer" if test "$lshared" = no; then needmdynamicnopic="yes" fi diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c index 30ab390e3a..41347a98b0 100644 --- a/libavcodec/mpegvideo.c +++ b/libavcodec/mpegvideo.c @@ -748,7 +748,7 @@ int MPV_encode_init(AVCodecContext *avctx) } if((s->flags & CODEC_FLAG_4MV) && s->codec_id != CODEC_ID_MPEG4 - && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P){ + && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P && s->codec_id != CODEC_ID_FLV1){ av_log(avctx, AV_LOG_ERROR, "4MV not supported by codec\n"); return -1; } diff --git a/libavformat/flvenc.c b/libavformat/flvenc.c index e6e3d7a011..b544b55568 100644 --- a/libavformat/flvenc.c +++ b/libavformat/flvenc.c @@ -121,7 +121,7 @@ static int mp3info(void *data, int *byteSize, int *samplesPerFrame, int *sampleR } } - *byteSize = ( ( ( ( *samplesPerFrame * (bitRate / bitsPerSlot) ) / *sampleRate ) + isPadded ) * bitsPerSlot); + *byteSize = ( ( ( ( *samplesPerFrame * (bitRate / bitsPerSlot) ) / *sampleRate ) + isPadded ) ); return 1; } @@ -295,8 +295,15 @@ static int flv_write_packet(AVFormatContext *s, int stream_index, int mp3SampleRate = 0; int mp3IsMono = 0; int mp3SamplesPerFrame = 0; + int c=0; - if ( mp3info(&flv->audioFifo[flv->audioInPos],&mp3FrameSize,&mp3SamplesPerFrame,&mp3SampleRate,&mp3IsMono) ) { + /* copy out mp3 header from ring buffer */ + uint8_t header[4]; + for (c=0; c<4; c++) { + header[c] = flv->audio_fifo[(flv->audioInPos+c) % AUDIO_FIFO_SIZE]; + } + + if ( mp3info(header,&mp3FrameSize,&mp3SamplesPerFrame,&mp3SampleRate,&mp3IsMono) ) { if ( flv->audioSize >= mp3FrameSize ) { int soundFormat = 0x22; diff --git a/libavformat/swf.c b/libavformat/swf.c index e9999f41b3..bf740d3e91 100644 --- a/libavformat/swf.c +++ b/libavformat/swf.c @@ -1,6 +1,7 @@ /* * Flash Compatible Streaming Format * Copyright (c) 2000 Fabrice Bellard. + * Copyright (c) 2003 Tinic Uro. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public @@ -28,9 +29,13 @@ #define TAG_FREECHARACTER 3 #define TAG_PLACEOBJECT 4 #define TAG_REMOVEOBJECT 5 -#define TAG_STREAMHEAD 18 +#define TAG_STREAMHEAD 45 #define TAG_STREAMBLOCK 19 #define TAG_JPEG2 21 +#define TAG_PLACEOBJECT2 26 +#define TAG_STREAMHEAD2 45 +#define TAG_VIDEOSTREAM 60 +#define TAG_VIDEOFRAME 61 #define TAG_LONG 0x100 @@ -39,16 +44,117 @@ #define FLAG_SETFILL0 0x02 #define FLAG_SETFILL1 0x04 +#define SWF_VIDEO_CODEC_FLV1 0x02 + +#define AUDIO_FIFO_SIZE 65536 + /* character id used */ #define BITMAP_ID 0 +#define VIDEO_ID 0 #define SHAPE_ID 1 +typedef struct SWFFrame_s { + void *data; + int size; + struct SWFFrame_s *prev; + struct SWFFrame_s *next; +} SWFFrame; + typedef struct { + offset_t duration_pos; offset_t tag_pos; + + int samples_per_frame; + int sound_samples; + int video_samples; + int skip_samples; + int swf_frame_number; + int video_frame_number; + int ms_per_frame; + int ch_id; int tag; + + uint8_t *audio_fifo; + int audio_in_pos; + int audio_out_pos; + int audio_size; + + int video_type; + int audio_type; + + SWFFrame *frame_head; + SWFFrame *frame_tail; } SWFContext; +static const int sSampleRates[3][4] = { + {44100, 48000, 32000, 0}, + {22050, 24000, 16000, 0}, + {11025, 12000, 8000, 0}, +}; + +static const int sBitRates[2][3][15] = { + { { 0, 32, 64, 96,128,160,192,224,256,288,320,352,384,416,448}, + { 0, 32, 48, 56, 64, 80, 96,112,128,160,192,224,256,320,384}, + { 0, 32, 40, 48, 56, 64, 80, 96,112,128,160,192,224,256,320} + }, + { { 0, 32, 48, 56, 64, 80, 96,112,128,144,160,176,192,224,256}, + { 0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96,112,128,144,160}, + { 0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96,112,128,144,160} + }, +}; + +static const int sSamplesPerFrame[3][3] = +{ + { 384, 1152, 1152 }, + { 384, 1152, 576 }, + { 384, 1152, 576 } +}; + +static const int sBitsPerSlot[3] = { + 32, + 8, + 8 +}; + +static int swf_mp3_info(void *data, int *byteSize, int *samplesPerFrame, int *sampleRate, int *isMono ) +{ + uint8_t *dataTmp = (uint8_t *)data; + uint32_t header = ( (uint32_t)dataTmp[0] << 24 ) | ( (uint32_t)dataTmp[1] << 16 ) | ( (uint32_t)dataTmp[2] << 8 ) | (uint32_t)dataTmp[3]; + int layerID = 3 - ((header >> 17) & 0x03); + int bitRateID = ((header >> 12) & 0x0f); + int sampleRateID = ((header >> 10) & 0x03); + int bitRate = 0; + int bitsPerSlot = sBitsPerSlot[layerID]; + int isPadded = ((header >> 9) & 0x01); + + if ( (( header >> 21 ) & 0x7ff) != 0x7ff ) { + return 0; + } + + *isMono = ((header >> 6) & 0x03) == 0x03; + + if ( (header >> 19 ) & 0x01 ) { + *sampleRate = sSampleRates[0][sampleRateID]; + bitRate = sBitRates[0][layerID][bitRateID] * 1000; + *samplesPerFrame = sSamplesPerFrame[0][layerID]; + } else { + if ( (header >> 20) & 0x01 ) { + *sampleRate = sSampleRates[1][sampleRateID]; + bitRate = sBitRates[1][layerID][bitRateID] * 1000; + *samplesPerFrame = sSamplesPerFrame[1][layerID]; + } else { + *sampleRate = sSampleRates[2][sampleRateID]; + bitRate = sBitRates[1][layerID][bitRateID] * 1000; + *samplesPerFrame = sSamplesPerFrame[2][layerID]; + } + } + + *byteSize = ( ( ( ( *samplesPerFrame * (bitRate / bitsPerSlot) ) / *sampleRate ) + isPadded ) ); + + return 1; +} + #ifdef CONFIG_ENCODERS static void put_swf_tag(AVFormatContext *s, int tag) { @@ -160,34 +266,44 @@ static void put_swf_line_edge(PutBitContext *pb, int dx, int dy) #define FRAC_BITS 16 -/* put matrix (not size optimized */ +/* put matrix */ static void put_swf_matrix(ByteIOContext *pb, int a, int b, int c, int d, int tx, int ty) { PutBitContext p; uint8_t buf[256]; + int nbits; init_put_bits(&p, buf, sizeof(buf)); put_bits(&p, 1, 1); /* a, d present */ - put_bits(&p, 5, 20); /* nb bits */ - put_bits(&p, 20, a); - put_bits(&p, 20, d); + nbits = 1; + max_nbits(&nbits, a); + max_nbits(&nbits, d); + put_bits(&p, 5, nbits); /* nb bits */ + put_bits(&p, nbits, a); + put_bits(&p, nbits, d); put_bits(&p, 1, 1); /* b, c present */ - put_bits(&p, 5, 20); /* nb bits */ - put_bits(&p, 20, c); - put_bits(&p, 20, b); + nbits = 1; + max_nbits(&nbits, c); + max_nbits(&nbits, b); + put_bits(&p, 5, nbits); /* nb bits */ + put_bits(&p, nbits, c); + put_bits(&p, nbits, b); - put_bits(&p, 5, 20); /* nb bits */ - put_bits(&p, 20, tx); - put_bits(&p, 20, ty); + nbits = 1; + max_nbits(&nbits, tx); + max_nbits(&nbits, ty); + put_bits(&p, 5, nbits); /* nb bits */ + put_bits(&p, nbits, tx); + put_bits(&p, nbits, ty); flush_put_bits(&p); put_buffer(pb, buf, pbBufPtr(&p) - p.buf); } -/* XXX: handle audio only */ +/* */ static int swf_write_header(AVFormatContext *s) { SWFContext *swf; @@ -202,87 +318,122 @@ static int swf_write_header(AVFormatContext *s) return -1; s->priv_data = swf; + swf->ch_id = -1; + swf->audio_in_pos = 0; + swf->audio_out_pos = 0; + swf->audio_size = 0; + swf->audio_fifo = av_malloc(AUDIO_FIFO_SIZE); + swf->frame_head = 0; + swf->frame_tail = 0; + swf->sound_samples = 0; + swf->video_samples = 0; + swf->swf_frame_number = 0; + swf->video_frame_number = 0; + swf->skip_samples = 0; + video_enc = NULL; audio_enc = NULL; for(i=0;inb_streams;i++) { enc = &s->streams[i]->codec; if (enc->codec_type == CODEC_TYPE_AUDIO) audio_enc = enc; - else - video_enc = enc; + else { + if ( enc->codec_id == CODEC_ID_FLV1 || enc->codec_id == CODEC_ID_MJPEG ) { + video_enc = enc; + } else { + fprintf(stderr, "SWF only supports FLV1 and MJPEG\n"); + return -1; + } + } } if (!video_enc) { /* currenty, cannot work correctly if audio only */ + swf->video_type = 0; width = 320; height = 200; rate = 10; rate_base= 1; } else { + swf->video_type = video_enc->codec_id; width = video_enc->width; height = video_enc->height; rate = video_enc->frame_rate; rate_base = video_enc->frame_rate_base; } + if (!audio_enc ) { + swf->audio_type = 0; + swf->samples_per_frame = ( 44100. * rate_base ) / rate; + } else { + swf->audio_type = audio_enc->codec_id; + swf->samples_per_frame = ( ( audio_enc->sample_rate ) * rate_base ) / rate; + } + put_tag(pb, "FWS"); - put_byte(pb, 4); /* version (should use 4 for mpeg audio support) */ + if ( video_enc && video_enc->codec_id == CODEC_ID_FLV1 ) { + put_byte(pb, 6); /* version (version 6 and above support FLV1 codec) */ + } else { + put_byte(pb, 4); /* version (should use 4 for mpeg audio support) */ + } put_le32(pb, DUMMY_FILE_SIZE); /* dummy size (will be patched if not streamed) */ - put_swf_rect(pb, 0, width, 0, height); + put_swf_rect(pb, 0, width * 20, 0, height * 20); put_le16(pb, (rate * 256) / rate_base); /* frame rate */ swf->duration_pos = url_ftell(pb); put_le16(pb, (uint16_t)(DUMMY_DURATION * (int64_t)rate / rate_base)); /* frame count */ /* define a shape with the jpeg inside */ + if ( video_enc && video_enc->codec_id == CODEC_ID_FLV1 ) { + } else if ( video_enc && video_enc->codec_id == CODEC_ID_MJPEG ) { + put_swf_tag(s, TAG_DEFINESHAPE); - put_swf_tag(s, TAG_DEFINESHAPE); + put_le16(pb, SHAPE_ID); /* ID of shape */ + /* bounding rectangle */ + put_swf_rect(pb, 0, width, 0, height); + /* style info */ + put_byte(pb, 1); /* one fill style */ + put_byte(pb, 0x41); /* clipped bitmap fill */ + put_le16(pb, BITMAP_ID); /* bitmap ID */ + /* position of the bitmap */ + put_swf_matrix(pb, (int)(1.0 * (1 << FRAC_BITS)), 0, + 0, (int)(1.0 * (1 << FRAC_BITS)), 0, 0); + put_byte(pb, 0); /* no line style */ + + /* shape drawing */ + init_put_bits(&p, buf1, sizeof(buf1)); + put_bits(&p, 4, 1); /* one fill bit */ + put_bits(&p, 4, 0); /* zero line bit */ + + put_bits(&p, 1, 0); /* not an edge */ + put_bits(&p, 5, FLAG_MOVETO | FLAG_SETFILL0); + put_bits(&p, 5, 1); /* nbits */ + put_bits(&p, 1, 0); /* X */ + put_bits(&p, 1, 0); /* Y */ + put_bits(&p, 1, 1); /* set fill style 1 */ + + /* draw the rectangle ! */ + put_swf_line_edge(&p, width, 0); + put_swf_line_edge(&p, 0, height); + put_swf_line_edge(&p, -width, 0); + put_swf_line_edge(&p, 0, -height); + + /* end of shape */ + put_bits(&p, 1, 0); /* not an edge */ + put_bits(&p, 5, 0); - put_le16(pb, SHAPE_ID); /* ID of shape */ - /* bounding rectangle */ - put_swf_rect(pb, 0, width, 0, height); - /* style info */ - put_byte(pb, 1); /* one fill style */ - put_byte(pb, 0x41); /* clipped bitmap fill */ - put_le16(pb, BITMAP_ID); /* bitmap ID */ - /* position of the bitmap */ - put_swf_matrix(pb, (int)(1.0 * (1 << FRAC_BITS)), 0, - 0, (int)(1.0 * (1 << FRAC_BITS)), 0, 0); - put_byte(pb, 0); /* no line style */ - - /* shape drawing */ - init_put_bits(&p, buf1, sizeof(buf1)); - put_bits(&p, 4, 1); /* one fill bit */ - put_bits(&p, 4, 0); /* zero line bit */ - - put_bits(&p, 1, 0); /* not an edge */ - put_bits(&p, 5, FLAG_MOVETO | FLAG_SETFILL0); - put_bits(&p, 5, 1); /* nbits */ - put_bits(&p, 1, 0); /* X */ - put_bits(&p, 1, 0); /* Y */ - put_bits(&p, 1, 1); /* set fill style 1 */ - - /* draw the rectangle ! */ - put_swf_line_edge(&p, width, 0); - put_swf_line_edge(&p, 0, height); - put_swf_line_edge(&p, -width, 0); - put_swf_line_edge(&p, 0, -height); - - /* end of shape */ - put_bits(&p, 1, 0); /* not an edge */ - put_bits(&p, 5, 0); - - flush_put_bits(&p); - put_buffer(pb, buf1, pbBufPtr(&p) - p.buf); - - put_swf_end_tag(s); + flush_put_bits(&p); + put_buffer(pb, buf1, pbBufPtr(&p) - p.buf); + put_swf_end_tag(s); + } - if (audio_enc) { + if (audio_enc && audio_enc->codec_id == CODEC_ID_MP3 ) { int v; /* start sound */ + put_swf_tag(s, TAG_STREAMHEAD2); v = 0; switch(audio_enc->sample_rate) { @@ -297,19 +448,18 @@ static int swf_write_header(AVFormatContext *s) break; default: /* not supported */ + av_free(swf->audio_fifo); av_free(swf); return -1; } + v |= 0x02; /* 16 bit playback */ if (audio_enc->channels == 2) - v |= 1; - v |= 0x20; /* mp3 compressed */ - v |= 0x02; /* 16 bits */ - - put_swf_tag(s, TAG_STREAMHEAD); - put_byte(&s->pb, 0); + v |= 0x01; /* stereo playback */ put_byte(&s->pb, v); - put_le16(&s->pb, (audio_enc->sample_rate * rate_base) / rate); /* avg samples per frame */ - + v |= 0x20; /* mp3 compressed */ + put_byte(&s->pb, v); + put_le16(&s->pb, swf->samples_per_frame); /* avg samples per frame */ + put_le16(&s->pb, 0); put_swf_end_tag(s); } @@ -321,62 +471,232 @@ static int swf_write_header(AVFormatContext *s) static int swf_write_video(AVFormatContext *s, AVCodecContext *enc, const uint8_t *buf, int size) { + SWFContext *swf = s->priv_data; ByteIOContext *pb = &s->pb; - static int tag_id = 0; - - if (enc->frame_number > 1) { - /* remove the shape */ - put_swf_tag(s, TAG_REMOVEOBJECT); - put_le16(pb, SHAPE_ID); /* shape ID */ - put_le16(pb, 1); /* depth */ - put_swf_end_tag(s); - - /* free the bitmap */ - put_swf_tag(s, TAG_FREECHARACTER); - put_le16(pb, BITMAP_ID); - put_swf_end_tag(s); + int c = 0; + int outSize = 0; + int outSamples = 0; + + /* Flash Player limit */ + if ( swf->swf_frame_number >= 16000 ) { + return 0; } - put_swf_tag(s, TAG_JPEG2 | TAG_LONG); - - put_le16(pb, tag_id); /* ID of the image */ - - /* a dummy jpeg header seems to be required */ - put_byte(pb, 0xff); - put_byte(pb, 0xd8); - put_byte(pb, 0xff); - put_byte(pb, 0xd9); - /* write the jpeg image */ - put_buffer(pb, buf, size); - - put_swf_end_tag(s); - - /* draw the shape */ - - put_swf_tag(s, TAG_PLACEOBJECT); - put_le16(pb, SHAPE_ID); /* shape ID */ - put_le16(pb, 1); /* depth */ - put_swf_matrix(pb, 1 << FRAC_BITS, 0, 0, 1 << FRAC_BITS, 0, 0); - put_swf_end_tag(s); + /* Store video data in queue */ + if ( enc->codec_type == CODEC_TYPE_VIDEO ) { + SWFFrame *new_frame = av_malloc(sizeof(SWFFrame)); + new_frame->prev = 0; + new_frame->next = swf->frame_head; + new_frame->data = av_malloc(size); + new_frame->size = size; + memcpy(new_frame->data,buf,size); + swf->frame_head = new_frame; + if ( swf->frame_tail == 0 ) { + swf->frame_tail = new_frame; + } + } + if ( swf->audio_type ) { + /* Prescan audio data for this swf frame */ +retry_swf_audio_packet: + if ( ( swf->audio_size-outSize ) >= 4 ) { + int mp3FrameSize = 0; + int mp3SampleRate = 0; + int mp3IsMono = 0; + int mp3SamplesPerFrame = 0; + + /* copy out mp3 header from ring buffer */ + uint8_t header[4]; + for (c=0; c<4; c++) { + header[c] = swf->audio_fifo[(swf->audio_in_pos+outSize+c) % AUDIO_FIFO_SIZE]; + } + + if ( swf_mp3_info(header,&mp3FrameSize,&mp3SamplesPerFrame,&mp3SampleRate,&mp3IsMono) ) { + if ( ( swf->audio_size-outSize ) >= mp3FrameSize ) { + outSize += mp3FrameSize; + outSamples += mp3SamplesPerFrame; + if ( ( swf->sound_samples + outSamples + swf->samples_per_frame ) < swf->video_samples ) { + goto retry_swf_audio_packet; + } + } + } else { + /* invalid mp3 data, skip forward + we need to do this since the Flash Player + does not like custom headers */ + swf->audio_in_pos ++; + swf->audio_size --; + swf->audio_in_pos %= AUDIO_FIFO_SIZE; + goto retry_swf_audio_packet; + } + } + + /* audio stream is behind video stream, bail */ + if ( ( swf->sound_samples + outSamples + swf->samples_per_frame ) < swf->video_samples ) { + return 0; + } + + /* compute audio/video drift */ + if ( enc->codec_type == CODEC_TYPE_VIDEO ) { + swf->skip_samples = (int)( ( (double)(swf->swf_frame_number) * (double)enc->frame_rate_base * 44100. ) / (double)(enc->frame_rate) ); + swf->skip_samples -= swf->video_samples; + } + } + + /* check if we need to insert a padding frame */ + if (swf->skip_samples <= ( swf->samples_per_frame / 2 ) ) { + /* no, it is time for a real frame, check if one is available */ + if ( swf->frame_tail ) { + if ( swf->video_type == CODEC_ID_FLV1 ) { + if ( swf->video_frame_number == 0 ) { + /* create a new video object */ + put_swf_tag(s, TAG_VIDEOSTREAM); + put_le16(pb, VIDEO_ID); + put_le16(pb, 15000 ); /* hard flash player limit */ + put_le16(pb, enc->width); + put_le16(pb, enc->height); + put_byte(pb, 0); + put_byte(pb, SWF_VIDEO_CODEC_FLV1); + put_swf_end_tag(s); + + /* place the video object for the first time */ + put_swf_tag(s, TAG_PLACEOBJECT2); + put_byte(pb, 0x36); + put_le16(pb, 1); + put_le16(pb, VIDEO_ID); + put_swf_matrix(pb, 1 << FRAC_BITS, 0, 0, 1 << FRAC_BITS, 0, 0); + put_le16(pb, swf->video_frame_number ); + put_byte(pb, 'v'); + put_byte(pb, 'i'); + put_byte(pb, 'd'); + put_byte(pb, 'e'); + put_byte(pb, 'o'); + put_byte(pb, 0x00); + put_swf_end_tag(s); + } else { + /* mark the character for update */ + put_swf_tag(s, TAG_PLACEOBJECT2); + put_byte(pb, 0x11); + put_le16(pb, 1); + put_le16(pb, swf->video_frame_number ); + put_swf_end_tag(s); + } + + // write out pending frames + for (; ( enc->frame_number - swf->video_frame_number ) > 0;) { + /* set video frame data */ + put_swf_tag(s, TAG_VIDEOFRAME | TAG_LONG); + put_le16(pb, VIDEO_ID); + put_le16(pb, swf->video_frame_number++ ); + put_buffer(pb, swf->frame_tail->data, swf->frame_tail->size); + put_swf_end_tag(s); + } + + } else if ( swf->video_type == CODEC_ID_MJPEG ) { + if (swf->swf_frame_number > 0) { + /* remove the shape */ + put_swf_tag(s, TAG_REMOVEOBJECT); + put_le16(pb, SHAPE_ID); /* shape ID */ + put_le16(pb, 1); /* depth */ + put_swf_end_tag(s); + + /* free the bitmap */ + put_swf_tag(s, TAG_FREECHARACTER); + put_le16(pb, BITMAP_ID); + put_swf_end_tag(s); + } + + put_swf_tag(s, TAG_JPEG2 | TAG_LONG); + + put_le16(pb, BITMAP_ID); /* ID of the image */ + + /* a dummy jpeg header seems to be required */ + put_byte(pb, 0xff); + put_byte(pb, 0xd8); + put_byte(pb, 0xff); + put_byte(pb, 0xd9); + /* write the jpeg image */ + put_buffer(pb, swf->frame_tail->data, swf->frame_tail->size); + + put_swf_end_tag(s); + + /* draw the shape */ + + put_swf_tag(s, TAG_PLACEOBJECT); + put_le16(pb, SHAPE_ID); /* shape ID */ + put_le16(pb, 1); /* depth */ + put_swf_matrix(pb, 20 << FRAC_BITS, 0, 0, 20 << FRAC_BITS, 0, 0); + put_swf_end_tag(s); + } else { + /* invalid codec */ + } + + av_free(swf->frame_tail->data); + swf->frame_tail = swf->frame_tail->prev; + if ( swf->frame_tail ) { + if ( swf->frame_tail->next ) { + av_free(swf->frame_tail->next); + } + swf->frame_tail->next = 0; + } else { + swf->frame_head = 0; + } + swf->swf_frame_number ++; + } + } + + swf->video_samples += swf->samples_per_frame; + + /* streaming sound always should be placed just before showframe tags */ + if ( outSize > 0 ) { + put_swf_tag(s, TAG_STREAMBLOCK | TAG_LONG); + put_le16(pb, outSamples); + put_le16(pb, 0); + for (c=0; caudio_fifo[(swf->audio_in_pos+c) % AUDIO_FIFO_SIZE]); + } + put_swf_end_tag(s); + + /* update FIFO */ + swf->sound_samples += outSamples; + swf->audio_in_pos += outSize; + swf->audio_size -= outSize; + swf->audio_in_pos %= AUDIO_FIFO_SIZE; + } + /* output the frame */ put_swf_tag(s, TAG_SHOWFRAME); put_swf_end_tag(s); put_flush_packet(&s->pb); + return 0; } -static int swf_write_audio(AVFormatContext *s, const uint8_t *buf, int size) +static int swf_write_audio(AVFormatContext *s, + AVCodecContext *enc, const uint8_t *buf, int size) { - ByteIOContext *pb = &s->pb; + SWFContext *swf = s->priv_data; + int c = 0; - put_swf_tag(s, TAG_STREAMBLOCK | TAG_LONG); + /* Flash Player limit */ + if ( swf->swf_frame_number >= 16000 ) { + return 0; + } + + if (enc->codec_id == CODEC_ID_MP3 ) { + for (c=0; caudio_fifo[(swf->audio_out_pos+c)%AUDIO_FIFO_SIZE] = buf[c]; + } + swf->audio_size += size; + swf->audio_out_pos += size; + swf->audio_out_pos %= AUDIO_FIFO_SIZE; + } + + /* if audio only stream make sure we add swf frames */ + if ( swf->video_type == 0 ) { + swf_write_video(s, enc, 0, 0); + } - put_buffer(pb, buf, size); - - put_swf_end_tag(s); - put_flush_packet(&s->pb); return 0; } @@ -385,7 +705,7 @@ static int swf_write_packet(AVFormatContext *s, int stream_index, { AVCodecContext *codec = &s->streams[stream_index]->codec; if (codec->codec_type == CODEC_TYPE_AUDIO) - return swf_write_audio(s, buf, size); + return swf_write_audio(s, codec, buf, size); else return swf_write_video(s, codec, buf, size); } @@ -417,12 +737,19 @@ static int swf_write_trailer(AVFormatContext *s) url_fseek(pb, swf->duration_pos, SEEK_SET); put_le16(pb, video_enc->frame_number); } + + av_free(swf->audio_fifo); + return 0; } #endif //CONFIG_ENCODERS -/***********************************/ -/* just to extract MP3 from swf */ +/*********************************************/ +/* Extract FLV encoded frame and MP3 from swf + Note that the detection of the real frame + is inaccurate at this point as it can be + quite tricky to determine, you almost certainly + will get a bad audio/video sync */ static int get_swf_tag(ByteIOContext *pb, int *len_ptr) { @@ -456,9 +783,17 @@ static int swf_probe(AVProbeData *p) static int swf_read_header(AVFormatContext *s, AVFormatParameters *ap) { + SWFContext *swf = 0; ByteIOContext *pb = &s->pb; int nbits, len, frame_rate, tag, v; - AVStream *st; + offset_t firstTagOff; + AVStream *ast = 0; + AVStream *vst = 0; + + swf = av_malloc(sizeof(SWFContext)); + if (!swf) + return -1; + s->priv_data = swf; if ((get_be32(pb) & 0xffffff00) != MKBETAG('F', 'W', 'S', 0)) return -EIO; @@ -469,70 +804,133 @@ static int swf_read_header(AVFormatContext *s, AVFormatParameters *ap) url_fskip(pb, len); frame_rate = get_le16(pb); get_le16(pb); /* frame count */ + + av_set_pts_info(s, 24, 1, 1000); /* 24 bit pts in ms */ + + /* The Flash Player converts 8.8 frame rates + to milliseconds internally. Do the same to get + a correct framerate */ + swf->ms_per_frame = ( 1000 * 256 ) / frame_rate; + swf->samples_per_frame = 0; + swf->ch_id = -1; + firstTagOff = url_ftell(pb); for(;;) { tag = get_swf_tag(pb, &len); if (tag < 0) { - fprintf(stderr, "No streaming found in SWF\n"); + if ( ast || vst ) { + if ( vst && ast ) { + vst->codec.frame_rate = ast->codec.sample_rate / swf->samples_per_frame; + vst->codec.frame_rate_base = 1; + } + break; + } + fprintf(stderr, "No media found in SWF\n"); return -EIO; } - if (tag == TAG_STREAMHEAD) { + if ( tag == TAG_VIDEOSTREAM && !vst) { + swf->ch_id = get_le16(pb); + get_le16(pb); + get_le16(pb); + get_le16(pb); + get_byte(pb); + /* Check for FLV1 */ + if ( get_byte(pb) == SWF_VIDEO_CODEC_FLV1 ) { + vst = av_new_stream(s, 0); + vst->codec.codec_type = CODEC_TYPE_VIDEO; + vst->codec.codec_id = CODEC_ID_FLV1; + if ( swf->samples_per_frame ) { + vst->codec.frame_rate = 1000. / swf->ms_per_frame; + vst->codec.frame_rate_base = 1; + } + } + } else if ( ( tag == TAG_STREAMHEAD || tag == TAG_STREAMHEAD2 ) && !ast) { /* streaming found */ get_byte(pb); v = get_byte(pb); - get_le16(pb); + swf->samples_per_frame = get_le16(pb); if (len!=4) url_fskip(pb,len-4); /* if mp3 streaming found, OK */ if ((v & 0x20) != 0) { - st = av_new_stream(s, 0); - if (!st) + if ( tag == TAG_STREAMHEAD2 ) { + get_le16(pb); + } + ast = av_new_stream(s, 1); + if (!ast) return -ENOMEM; if (v & 0x01) - st->codec.channels = 2; + ast->codec.channels = 2; else - st->codec.channels = 1; + ast->codec.channels = 1; switch((v>> 2) & 0x03) { case 1: - st->codec.sample_rate = 11025; + ast->codec.sample_rate = 11025; break; case 2: - st->codec.sample_rate = 22050; + ast->codec.sample_rate = 22050; break; case 3: - st->codec.sample_rate = 44100; + ast->codec.sample_rate = 44100; break; default: - av_free(st); + av_free(ast); return -EIO; } - st->codec.codec_type = CODEC_TYPE_AUDIO; - st->codec.codec_id = CODEC_ID_MP2; - break; + ast->codec.codec_type = CODEC_TYPE_AUDIO; + ast->codec.codec_id = CODEC_ID_MP3; } } else { url_fskip(pb, len); } } - + url_fseek(pb, firstTagOff, SEEK_SET); + return 0; } static int swf_read_packet(AVFormatContext *s, AVPacket *pkt) { + SWFContext *swf = s->priv_data; ByteIOContext *pb = &s->pb; - int tag, len; + AVStream *st = 0; + int tag, len, i, frame; for(;;) { tag = get_swf_tag(pb, &len); if (tag < 0) return -EIO; - if (tag == TAG_STREAMBLOCK) { - av_new_packet(pkt, len); - get_buffer(pb, pkt->data, pkt->size); - break; + if (tag == TAG_VIDEOFRAME) { + for( i=0; inb_streams; i++ ) { + st = s->streams[i]; + if (st->id == 0) { + if ( get_le16(pb) == swf->ch_id ) { + frame = get_le16(pb); + av_new_packet(pkt, len-4); + pkt->pts = frame * swf->ms_per_frame; + pkt->stream_index = st->index; + get_buffer(pb, pkt->data, pkt->size); + return pkt->size; + } else { + url_fskip(pb, len-2); + continue; + } + } + } + url_fskip(pb, len); + } else if (tag == TAG_STREAMBLOCK) { + for( i=0; inb_streams; i++ ) { + st = s->streams[i]; + if (st->id == 1) { + av_new_packet(pkt, len); + pkt->stream_index = st->index; + get_buffer(pb, pkt->data, pkt->size); + return pkt->size; + } + } + url_fskip(pb, len); } else { url_fskip(pb, len); } @@ -548,7 +946,7 @@ static int swf_read_close(AVFormatContext *s) static AVInputFormat swf_iformat = { "swf", "Flash format", - 0, + sizeof(SWFContext), swf_probe, swf_read_header, swf_read_packet, @@ -562,8 +960,8 @@ static AVOutputFormat swf_oformat = { "application/x-shockwave-flash", "swf", sizeof(SWFContext), - CODEC_ID_MP2, - CODEC_ID_MJPEG, + CODEC_ID_MP3, + CODEC_ID_FLV1, swf_write_header, swf_write_packet, swf_write_trailer,