{ CODEC_ID_MPEG1VIDEO, { MKTAG('P', 'I', 'M', '1'), 0 } },
{ CODEC_ID_AC3, { 0x2000, 0 } },
{ CODEC_ID_MP2, { 0x50, 0x55, 0 } },
+ { CODEC_ID_FLV1, { MKTAG('F', 'L', 'V', '1'), 0 } },
{ CODEC_ID_NONE, {0}}
};
CODEC_ID_WMV2,
CODEC_ID_H263P,
CODEC_ID_H263I,
+ CODEC_ID_FLV1,
CODEC_ID_SVQ1,
CODEC_ID_SVQ3,
CODEC_ID_DVVIDEO,
extern AVCodec mpeg1video_encoder;
extern AVCodec h263_encoder;
extern AVCodec h263p_encoder;
+extern AVCodec flv_encoder;
extern AVCodec rv10_encoder;
extern AVCodec mjpeg_encoder;
extern AVCodec ljpeg_encoder;
extern AVCodec wmv2_decoder;
extern AVCodec mpeg_decoder;
extern AVCodec h263i_decoder;
+extern AVCodec flv_decoder;
extern AVCodec rv10_decoder;
extern AVCodec svq1_decoder;
extern AVCodec svq3_decoder;
#ifdef CONFIG_ENCODERS
static void h263_encode_block(MpegEncContext * s, DCTELEM * block,
- int n);
+ int n);
+static void h263_flv_encode_block(MpegEncContext * s, DCTELEM * block,
+ int n);
static void h263_encode_motion(MpegEncContext * s, int val, int fcode);
static void h263p_encode_umotion(MpegEncContext * s, int val);
static inline void mpeg4_encode_block(MpegEncContext * s, DCTELEM * block,
- int n, int dc, uint8_t *scan_table,
+ int n, int dc, uint8_t *scan_table,
PutBitContext *dc_pb, PutBitContext *ac_pb);
#endif
align_put_bits(&s->pb);
+ if (s->h263_flv) {
+ put_bits(&s->pb, 17, 1);
+ put_bits(&s->pb, 5, (s->h263_flv-1)); /* 0: h263 escape codes 1: 11-bit escape codes */
+ put_bits(&s->pb, 8, (((int64_t)s->picture_number * 30 * s->avctx->frame_rate_base) /
+ s->avctx->frame_rate) & 0xff); /* TemporalReference */
+ if (s->width == 352 && s->height == 288)
+ format = 2;
+ else if (s->width == 176 && s->height == 144)
+ format = 3;
+ else if (s->width == 128 && s->height == 96)
+ format = 4;
+ else if (s->width == 320 && s->height == 240)
+ format = 5;
+ else if (s->width == 160 && s->height == 120)
+ format = 6;
+ else if (s->width <= 255 && s->height <= 255)
+ format = 0; /* use 1 byte width & height */
+ else
+ format = 1; /* use 2 bytes width & height */
+ put_bits(&s->pb, 3, format); /* PictureSize */
+ if (format == 0) {
+ put_bits(&s->pb, 8, s->width);
+ put_bits(&s->pb, 8, s->height);
+ } else if (format == 1) {
+ put_bits(&s->pb, 16, s->width);
+ put_bits(&s->pb, 16, s->height);
+ }
+ put_bits(&s->pb, 2, s->pict_type == P_TYPE); /* PictureType */
+ put_bits(&s->pb, 1, 0); /* DeblockingFlag: off */
+ put_bits(&s->pb, 5, s->qscale); /* Quantizer */
+ put_bits(&s->pb, 1, 0); /* ExtraInformation */
+
+ if(s->h263_aic){
+ s->y_dc_scale_table=
+ s->c_dc_scale_table= h263_aic_dc_scale_table;
+ }else{
+ s->y_dc_scale_table=
+ s->c_dc_scale_table= ff_mpeg1_dc_scale_table;
+ }
+ return;
+ }
+
/* Update the pointer to last GOB */
s->ptr_lastgob = pbBufPtr(&s->pb);
s->gob_number = 0;
int16_t pred_dc;
int16_t rec_intradc[6];
uint16_t *dc_ptr[6];
+ const int interleaved_stats= (s->flags&CODEC_FLAG_PASS1);
const int dquant_code[5]= {1,0,9,2,3};
//printf("**mb x=%d y=%d\n", s->mb_x, s->mb_y);
if ((cbp | motion_x | motion_y | s->dquant) == 0) {
/* skip macroblock */
put_bits(&s->pb, 1, 1);
+ if(interleaved_stats){
+ s->misc_bits++;
+ s->last_bits++;
+ }
return;
}
put_bits(&s->pb, 1, 0); /* mb coded */
if(s->dquant)
put_bits(&s->pb, 2, dquant_code[s->dquant+2]);
+ if(interleaved_stats){
+ s->misc_bits+= get_bits_diff(s);
+ }
+
/* motion vectors: 16x16 mode only now */
h263_pred_motion(s, 0, &pred_x, &pred_y);
/* To prevent Start Code emulation */
put_bits(&s->pb,1,1);
}
+
+ if(interleaved_stats){
+ s->mv_bits+= get_bits_diff(s);
+ }
} else {
int li = s->h263_aic ? 0 : 1;
put_bits(&s->pb, cbpy_tab[cbpy][1], cbpy_tab[cbpy][0]);
if(s->dquant)
put_bits(&s->pb, 2, dquant_code[s->dquant+2]);
+
+ if(interleaved_stats){
+ s->misc_bits+= get_bits_diff(s);
+ }
}
for(i=0; i<6; i++) {
/* encode each block */
- h263_encode_block(s, block[i], i);
+ if (s->h263_flv > 1)
+ h263_flv_encode_block(s, block[i], i);
+ else
+ h263_encode_block(s, block[i], i);
/* Update INTRADC for decoding */
if (s->h263_aic && s->mb_intra) {
}
}
+
+ if(interleaved_stats){
+ if (!s->mb_intra) {
+ s->p_tex_bits+= get_bits_diff(s);
+ s->f_count++;
+ }else{
+ s->i_tex_bits+= get_bits_diff(s);
+ s->i_count++;
+ }
+ }
}
#endif
s->max_qcoeff= 127;
break;
//Note for mpeg4 & h263 the dc-scale table will be set per frame as needed later
+ case CODEC_ID_FLV1:
+ if (s->h263_flv > 1) {
+ s->min_qcoeff= -1023;
+ s->max_qcoeff= 1023;
+ } else {
+ s->min_qcoeff= -127;
+ s->max_qcoeff= 127;
+ }
+ s->y_dc_scale_table=
+ s->c_dc_scale_table= ff_mpeg1_dc_scale_table;
+ break;
default: //nothing needed default table allready set in mpegvideo.c
s->min_qcoeff= -127;
s->max_qcoeff= 127;
}
}
}
+
+/**
+ * encodes a 8x8 block.
+ * @param block the 8x8 block
+ * @param n block index (0-3 are luma, 4-5 are chroma)
+ */
+static void h263_flv_encode_block(MpegEncContext * s, DCTELEM * block, int n)
+{
+ int level, run, last, i, j, last_index, last_non_zero, sign, slevel, code;
+ RLTable *rl;
+
+ rl = &rl_inter;
+ if (s->mb_intra && !s->h263_aic) {
+ /* DC coef */
+ level = block[0];
+ /* 255 cannot be represented, so we clamp */
+ if (level > 254) {
+ level = 254;
+ block[0] = 254;
+ }
+ /* 0 cannot be represented also */
+ else if (level < 1) {
+ level = 1;
+ block[0] = 1;
+ }
+ if (level == 128) //FIXME check rv10
+ put_bits(&s->pb, 8, 0xff);
+ else
+ put_bits(&s->pb, 8, level & 0xff);
+ i = 1;
+ } else {
+ i = 0;
+ if (s->h263_aic && s->mb_intra)
+ rl = &rl_intra_aic;
+ }
+
+ /* AC coefs */
+ last_index = s->block_last_index[n];
+ last_non_zero = i - 1;
+ for (; i <= last_index; i++) {
+ j = s->intra_scantable.permutated[i];
+ level = block[j];
+ if (level) {
+ run = i - last_non_zero - 1;
+ last = (i == last_index);
+ sign = 0;
+ slevel = level;
+ if (level < 0) {
+ sign = 1;
+ level = -level;
+ }
+ code = get_rl_index(rl, last, run, level);
+ put_bits(&s->pb, rl->table_vlc[code][1], rl->table_vlc[code][0]);
+ if (code == rl->n) {
+ assert(slevel != 0);
+ if(slevel < 64 && slevel > -64) {
+ /* 7-bit level */
+ put_bits(&s->pb, 1, 0);
+ put_bits(&s->pb, 1, last);
+ put_bits(&s->pb, 6, run);
+
+ put_bits(&s->pb, 7, slevel & 0x7f);
+ } else {
+ /* 11-bit level */
+ put_bits(&s->pb, 1, 1);
+ put_bits(&s->pb, 1, last);
+ put_bits(&s->pb, 6, run);
+
+ put_bits(&s->pb, 11, slevel & 0x7ff);
+ }
+ } else {
+ put_bits(&s->pb, 1, sign);
+ }
+ last_non_zero = i;
+ }
+ }
+}
#endif
#ifdef CONFIG_ENCODERS
}
if (code == rl->n) {
/* escape */
- last = get_bits1(&s->gb);
- run = get_bits(&s->gb, 6);
- level = (int8_t)get_bits(&s->gb, 8);
- if(level == -128){
- if (s->h263_rv10) {
- /* XXX: should patch encoder too */
- level = get_sbits(&s->gb, 12);
- }else{
- level = get_bits(&s->gb, 5);
- level |= get_sbits(&s->gb, 6)<<5;
+ if (s->h263_flv > 1) {
+ int is11 = get_bits1(&s->gb);
+ last = get_bits1(&s->gb);
+ run = get_bits(&s->gb, 6);
+ if(is11){
+ level = (int8_t)get_sbits(&s->gb, 11);
+ } else {
+ level = (int8_t)get_sbits(&s->gb, 7);
+ }
+ } else {
+ last = get_bits1(&s->gb);
+ run = get_bits(&s->gb, 6);
+ level = (int8_t)get_bits(&s->gb, 8);
+ if(level == -128){
+ if (s->h263_rv10) {
+ /* XXX: should patch encoder too */
+ level = get_sbits(&s->gb, 12);
+ }else{
+ level = get_bits(&s->gb, 5);
+ level |= get_sbits(&s->gb, 6)<<5;
+ }
}
}
} else {
return 0;
}
+int flv_h263_decode_picture_header(MpegEncContext *s)
+{
+ int format, width, height;
+
+ /* picture header */
+ if (get_bits_long(&s->gb, 17) != 1) {
+ fprintf(stderr, "Bad picture start code\n");
+ return -1;
+ }
+ format = get_bits(&s->gb, 5);
+ if (format != 0 && format != 1) {
+ fprintf(stderr, "Bad picture format\n");
+ return -1;
+ }
+ s->h263_flv = format+1;
+ s->picture_number = get_bits(&s->gb, 8); /* picture timestamp */
+ format = get_bits(&s->gb, 3);
+ switch (format) {
+ case 0:
+ width = get_bits(&s->gb, 8);
+ height = get_bits(&s->gb, 8);
+ break;
+ case 1:
+ width = get_bits(&s->gb, 16);
+ height = get_bits(&s->gb, 16);
+ break;
+ case 2:
+ width = 352;
+ height = 288;
+ break;
+ case 3:
+ width = 176;
+ height = 144;
+ break;
+ case 4:
+ width = 128;
+ height = 96;
+ break;
+ case 5:
+ width = 320;
+ height = 240;
+ break;
+ case 6:
+ width = 160;
+ height = 120;
+ break;
+ default:
+ width = height = 0;
+ break;
+ }
+ if ((width == 0) || (height == 0))
+ return -1;
+ s->width = width;
+ s->height = height;
+
+ s->pict_type = I_TYPE + get_bits(&s->gb, 2);
+ if (s->pict_type > P_TYPE)
+ s->pict_type = P_TYPE;
+ skip_bits1(&s->gb); /* deblocking flag */
+ s->qscale = get_bits(&s->gb, 5);
+
+ s->h263_plus = 0;
+
+ s->unrestricted_mv = 1;
+ s->h263_long_vectors = s->unrestricted_mv;
+
+ /* PEI */
+ while (get_bits1(&s->gb) != 0) {
+ skip_bits(&s->gb, 8);
+ }
+ s->f_code = 1;
+
+ s->y_dc_scale_table=
+ s->c_dc_scale_table= ff_mpeg1_dc_scale_table;
+
+ return 0;
+}
case CODEC_ID_H263I:
s->h263_intel = 1;
break;
+ case CODEC_ID_FLV1:
+ s->h263_flv = 1;
+ break;
default:
return -1;
}
s->low_delay=1;
} else if (s->h263_intel) {
ret = intel_h263_decode_picture_header(s);
+ } else if (s->h263_flv) {
+ ret = flv_h263_decode_picture_header(s);
} else {
ret = h263_decode_picture_header(s);
}
mpeg4_decoptions,
};
+AVCodec flv_decoder = {
+ "flv",
+ CODEC_TYPE_VIDEO,
+ CODEC_ID_FLV1,
+ sizeof(MpegEncContext),
+ ff_h263_decode_init,
+ NULL,
+ ff_h263_decode_end,
+ ff_h263_decode_frame,
+ CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1
+};
{
const uint8_t *p, *p1;
uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
- int x;
+ int w;
p1 = src->data[0];
lum1 = dst->data[0];
cb1 = dst->data[1];
cr1 = dst->data[2];
- for(;height >= 2; height -= 2) {
+ for(;height >= 1; height -= 2) {
p = p1;
lum = lum1;
cb = cb1;
cr = cr1;
- for(x=0;x<width;x+=2) {
+ for(w = width; w >= 2; w -= 2) {
lum[0] = p[0];
cb[0] = p[1];
lum[1] = p[2];
cb++;
cr++;
}
- p1 += src->linesize[0];
- lum1 += dst->linesize[0];
- p = p1;
- lum = lum1;
- for(x=0;x<width;x+=2) {
+ if (w) {
lum[0] = p[0];
- lum[1] = p[2];
- p += 4;
- lum += 2;
+ cb[0] = p[1];
+ cr[0] = p[3];
+ cb++;
+ cr++;
}
p1 += src->linesize[0];
lum1 += dst->linesize[0];
+ if (height>1) {
+ p = p1;
+ lum = lum1;
+ for(w = width; w >= 2; w -= 2) {
+ lum[0] = p[0];
+ lum[1] = p[2];
+ p += 4;
+ lum += 2;
+ }
+ if (w) {
+ lum[0] = p[0];
+ }
+ p1 += src->linesize[0];
+ lum1 += dst->linesize[0];
+ }
cb1 += dst->linesize[1];
cr1 += dst->linesize[2];
}
avctx->delay=0;
s->low_delay=1;
break;
+ case CODEC_ID_FLV1:
+ s->out_format = FMT_H263;
+ s->h263_flv = 2; /* format = 1; 11-bit codes */
+ s->unrestricted_mv = 1;
+ s->rtp_mode=0; /* don't allow GOB */
+ avctx->delay=0;
+ s->low_delay=1;
+ break;
case CODEC_ID_RV10:
s->out_format = FMT_H263;
s->h263_rv10 = 1;
ff_wmv2_encode_mb(s, s->block, motion_x, motion_y); break;
case CODEC_ID_H263:
case CODEC_ID_H263P:
+ case CODEC_ID_FLV1:
case CODEC_ID_RV10:
h263_encode_mb(s, s->block, motion_x, motion_y); break;
#endif
break;
case CODEC_ID_H263:
case CODEC_ID_H263P:
+ case CODEC_ID_FLV1:
ff_clean_h263_qscales(s);
break;
}
s->last_mv_dir = 0;
#ifdef CONFIG_RISKY
- if (s->codec_id==CODEC_ID_H263 || s->codec_id==CODEC_ID_H263P)
+ switch(s->codec_id){
+ case CODEC_ID_H263:
+ case CODEC_ID_H263P:
+ case CODEC_ID_FLV1:
s->gob_index = ff_h263_get_gob_height(s);
-
- if(s->codec_id==CODEC_ID_MPEG4 && s->partitioned_frame)
- ff_mpeg4_init_partitions(s);
+ break;
+ case CODEC_ID_MPEG4:
+ if(s->partitioned_frame)
+ ff_mpeg4_init_partitions(s);
+ break;
+ }
#endif
s->resync_mb_x=0;
MPV_encode_end,
};
+AVCodec flv_encoder = {
+ "flv",
+ CODEC_TYPE_VIDEO,
+ CODEC_ID_FLV1,
+ sizeof(MpegEncContext),
+ MPV_encode_init,
+ MPV_encode_picture,
+ MPV_encode_end,
+};
+
AVCodec rv10_encoder = {
"rv10",
CODEC_TYPE_VIDEO,
int h263_rv10; ///< use RV10 variation for H263
int h263_msmpeg4; ///< generate MSMPEG4 compatible stream (deprecated, use msmpeg4_version instead)
int h263_intel; ///< use I263 intel h263 header
+ int h263_flv; ///< use flv h263 header
int codec_id; /* see CODEC_ID_xxx */
int fixed_qscale; ///< fixed qscale if non zero
int intel_h263_decode_picture_header(MpegEncContext *s);
+int flv_h263_decode_picture_header(MpegEncContext *s);
int ff_h263_decode_mb(MpegEncContext *s,
DCTELEM block[6][64]);
int h263_get_picture_format(int width, int height);
case CODEC_ID_WMV2:
case CODEC_ID_H263P:
case CODEC_ID_H263I:
+ case CODEC_ID_FLV1:
case CODEC_ID_SVQ1:
for(i=0; i<MAX_PICTURE_COUNT; i++){
if(s->picture[i].data[0] && ( s->picture[i].type == FF_BUFFER_TYPE_INTERNAL
# mux and demuxes
OBJS+=mpeg.o mpegts.o mpegtsenc.o ffm.o crc.o img.o raw.o rm.o \
avienc.o avidec.o wav.o swf.o au.o gif.o mov.o mpjpeg.o dv.o \
- yuv4mpeg.o 4xm.o
+ yuv4mpeg.o 4xm.o flvenc.o flvdec.o
ifeq ($(CONFIG_RISKY),yes)
OBJS+= asf.o
jpeg_init();
dv_init();
fourxm_init();
+ flvenc_init();
+ flvdec_init();
#ifdef AMR_NB
amr_init();
/* mov.c */
int mov_init(void);
+/* flvenc.c */
+int flvenc_init(void);
+
+/* flvdec.c */
+int flvdec_init(void);
+
/* jpeg.c */
int jpeg_init(void);
--- /dev/null
+/*
+ * FLV encoder.
+ * Copyright (c) 2003 The FFmpeg Project.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#include "avformat.h"
+
+unsigned int get_be24(ByteIOContext *s)
+{
+ unsigned int val;
+ val = get_byte(s) << 16;
+ val |= get_byte(s) << 8;
+ val |= get_byte(s);
+ return val;
+}
+
+static int flv_probe(AVProbeData *p)
+{
+ const uint8_t *d;
+
+ if (p->buf_size < 6)
+ return 0;
+ d = p->buf;
+ if (d[0] == 'F' && d[1] == 'L' && d[2] == 'V') {
+ return 50;
+ }
+ return 0;
+}
+
+static int flv_read_header(AVFormatContext *s,
+ AVFormatParameters *ap)
+{
+ int offset, flags;
+ AVStream *st;
+
+ av_set_pts_info(s, 24, 1, 1000); /* 24 bit pts in ms */
+
+ url_fskip(&s->pb, 4);
+ flags = get_byte(&s->pb);
+
+ if ((flags & 1)) {
+ st = av_new_stream(s, 0);
+ if (!st)
+ return AVERROR_NOMEM;
+ st->codec.codec_type = CODEC_TYPE_VIDEO;
+ st->codec.codec_id = CODEC_ID_FLV1;
+ }
+
+ if ((flags & 4)) {
+ st = av_new_stream(s, 1);
+ if (!st)
+ return AVERROR_NOMEM;
+ st->codec.codec_type = CODEC_TYPE_AUDIO;
+ st->codec.codec_id = CODEC_ID_MP3LAME;
+ }
+
+ offset = get_be32(&s->pb);
+ url_fseek(&s->pb, offset, SEEK_SET);
+
+ return 0;
+}
+
+static int flv_read_packet(AVFormatContext *s, AVPacket *pkt)
+{
+ int ret, i, type, size, pts, flags;
+ AVStream *st;
+
+ redo:
+ url_fskip(&s->pb, 4); /* size of previous packet */
+ type = get_byte(&s->pb);
+ size = get_be24(&s->pb);
+ pts = get_be24(&s->pb);
+ if (url_feof(&s->pb))
+ return -EIO;
+ url_fskip(&s->pb, 4); /* reserved */
+ flags = 0;
+ if (type == 8) {
+ flags = get_byte(&s->pb);
+ size--;
+ if ((flags >> 4) != 2) { /* 0: uncompressed 1: ADPCM 2: mp3 5: Nellymoser 8kHz mono 6: Nellymoser*/
+ goto skip;
+ }
+ } else if (type == 9) {
+ flags = get_byte(&s->pb);
+ size--;
+ if ((flags & 0xF) != 2) { /* 2: only format */
+ goto skip;
+ }
+ } else {
+ skip:
+ /* skip packet */
+ printf("skipping flv packet: type %d, size %d, flags %d\n", type, size, flags);
+ url_fskip(&s->pb, size);
+ goto redo;
+ }
+
+ /* now find stream */
+ for(i=0;i<s->nb_streams;i++) {
+ st = s->streams[i];
+ if (st->id == ((type == 9) ? 0 : 1))
+ goto found;
+ }
+ goto skip;
+ found:
+
+ if (av_new_packet(pkt, size) < 0)
+ return -EIO;
+
+ ret = get_buffer(&s->pb, pkt->data, size);
+ if (ret <= 0) {
+ av_free_packet(pkt);
+ return -EIO;
+ }
+ /* note: we need to modify the packet size here to handle the last
+ packet */
+ pkt->size = ret;
+ pkt->pts = pts;
+ pkt->stream_index = st->index;
+ return ret;
+}
+
+static int flv_read_close(AVFormatContext *s)
+{
+ return 0;
+}
+
+AVInputFormat flv_iformat = {
+ "flv",
+ "flv format",
+ 0,
+ flv_probe,
+ flv_read_header,
+ flv_read_packet,
+ flv_read_close,
+ .extensions = "flv",
+ .value = CODEC_ID_FLV1,
+};
+
+int flvdec_init(void)
+{
+ av_register_input_format(&flv_iformat);
+ return 0;
+}
--- /dev/null
+/*
+ * FLV encoder.
+ * Copyright (c) 2003 The FFmpeg Project.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#include "avformat.h"
+
+#define VIDEO_FIFO_SIZE 512
+
+typedef struct FLVFrame {
+ int type;
+ int timestamp;
+ int flags;
+ uint8_t *data;
+ int size;
+ struct FLVFrame *next;
+} FLVFrame;
+
+typedef struct FLVContext {
+ int hasAudio;
+ int hasVideo;
+#ifdef CONFIG_MP3LAME
+ int audioTime;
+ int audioInPos;
+ int audioOutPos;
+ int audioSize;
+ int audioRate;
+ int initDelay;
+ int soundDelay;
+ uint8_t *audioFifo;
+ int64_t sampleCount;
+#endif // CONFIG_MP3LAME
+ int64_t frameCount;
+ FLVFrame *frames;
+} FLVContext;
+
+
+#ifdef CONFIG_MP3LAME
+
+#define AUDIO_FIFO_SIZE 65536
+
+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 mp3info(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;
+ }
+
+ if ( !isPadded ) {
+ printf("Fatal error: mp3 data is not padded!\n");
+ exit(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 ) * bitsPerSlot);
+
+ return 1;
+}
+#endif // CONFIG_MP3LAME
+
+static int flv_write_header(AVFormatContext *s)
+{
+ ByteIOContext *pb = &s->pb;
+ FLVContext *flv = s->priv_data;
+
+ av_set_pts_info(s, 24, 1, 1000); /* 24 bit pts in ms */
+
+ flv->hasAudio = 0;
+ flv->hasVideo = 0;
+
+#ifdef CONFIG_MP3LAME
+ flv->audioTime = -1;
+ flv->audioFifo = av_malloc(AUDIO_FIFO_SIZE);
+ flv->audioInPos = 0;
+ flv->audioOutPos = 0;
+ flv->audioSize = 0;
+ flv->audioRate = 44100;
+ flv->initDelay = -1;
+ flv->soundDelay = 0;
+#endif // CONFIG_MP3LAME
+
+ flv->frames = 0;
+
+ put_tag(pb,"FLV");
+ put_byte(pb,1);
+ put_byte(pb,0); // delayed write
+ put_be32(pb,9);
+ put_be32(pb,0);
+
+ return 0;
+}
+
+static void put_be24(ByteIOContext *pb, int value)
+{
+ put_byte(pb, (value>>16) & 0xFF );
+ put_byte(pb, (value>> 8) & 0xFF );
+ put_byte(pb, (value>> 0) & 0xFF );
+}
+
+static void InsertSorted(FLVContext *flv, FLVFrame *frame)
+{
+ if ( !flv->frames ) {
+ flv->frames = frame;
+ } else {
+ FLVFrame *trav = flv->frames;
+ FLVFrame *prev = 0;
+ for (;trav;) {
+ if ( trav->timestamp >= frame->timestamp ) {
+ frame->next = trav;
+ if ( prev ) {
+ prev->next = frame;
+ } else {
+ flv->frames = frame;
+ }
+ break;
+ }
+ prev = trav;
+ trav = trav->next;
+ }
+ if ( !trav ) {
+ prev->next = frame;
+ }
+ }
+}
+
+static void DumpFrame(ByteIOContext *pb, FLVFrame *frame)
+{
+ put_byte(pb,frame->type); // message type
+ put_be24(pb,frame->size+1); // include flags
+ put_be24(pb,frame->timestamp); // time stamp
+ put_be32(pb,0); // reserved
+ put_byte(pb,frame->flags);
+ put_buffer(pb, frame->data, frame->size);
+ put_be32(pb,frame->size+1+11); // reserved
+ av_free(frame->data);
+}
+
+static void Dump(FLVContext *flv, ByteIOContext *pb, int count)
+{
+ int c=0;
+ FLVFrame *trav = flv->frames;
+ FLVFrame *prev = 0;
+ for (;trav;c++) {
+ trav = trav->next;
+ }
+ trav = flv->frames;
+ for ( ; c >= count; c-- ) {
+ DumpFrame(pb,trav);
+ prev = trav;
+ trav = trav->next;
+ av_free(prev);
+ }
+ flv->frames = trav;
+}
+
+static int flv_write_trailer(AVFormatContext *s)
+{
+ ByteIOContext *pb = &s->pb;
+ FLVContext *flv = s->priv_data;
+
+ Dump(flv,pb,1);
+
+ int64_t file_size = url_ftell(pb);
+ int flags = 0;
+ flags |= flv->hasAudio ? 4 : 0;
+ flags |= flv->hasVideo ? 1 : 0;
+ url_fseek(pb, 4, SEEK_SET);
+ put_byte(pb,flags);
+ url_fseek(pb, file_size, SEEK_SET);
+ return 0;
+}
+
+static int flv_write_packet(AVFormatContext *s, int stream_index,
+ uint8_t *buf, int size, int timestamp)
+{
+ ByteIOContext *pb = &s->pb;
+ AVCodecContext *enc = &s->streams[stream_index]->codec;
+ FLVContext *flv = s->priv_data;
+
+ if (enc->codec_type == CODEC_TYPE_VIDEO) {
+ FLVFrame *frame = av_malloc(sizeof(FLVFrame));
+ frame->next = 0;
+ frame->type = 9;
+ frame->flags = 2; // choose h263
+ frame->flags |= enc->coded_frame->key_frame ? 0x10 : 0x20; // add keyframe indicator
+ frame->timestamp = timestamp;
+ //frame->timestamp = ( ( flv->frameCount * (int64_t)FRAME_RATE_BASE * (int64_t)1000 ) / (int64_t)enc->frame_rate );
+ //printf("%08x %f %f\n",frame->timestamp,(double)enc->frame_rate/(double)FRAME_RATE_BASE,1000*(double)FRAME_RATE_BASE/(double)enc->frame_rate);
+ frame->size = size;
+ frame->data = av_malloc(size);
+ memcpy(frame->data,buf,size);
+ flv->hasVideo = 1;
+
+ InsertSorted(flv,frame);
+
+ flv->frameCount ++;
+ }
+ else if (enc->codec_type == CODEC_TYPE_AUDIO) {
+#ifdef CONFIG_MP3LAME
+ if (enc->codec_id == CODEC_ID_MP3LAME ) {
+ int c=0;
+ for (;c<size;c++) {
+ flv->audioFifo[(flv->audioOutPos+c)%AUDIO_FIFO_SIZE] = buf[c];
+ }
+ flv->audioSize += size;
+ flv->audioOutPos += size;
+ flv->audioOutPos %= AUDIO_FIFO_SIZE;
+
+ if ( flv->initDelay == -1 ) {
+ flv->initDelay = timestamp;
+ }
+
+ if ( flv->audioTime == -1 ) {
+ flv->audioTime = timestamp;
+// flv->audioTime = ( ( ( flv->sampleCount - enc->delay ) * 8000 ) / flv->audioRate ) - flv->initDelay - 250;
+// if ( flv->audioTime < 0 ) {
+// flv->audioTime = 0;
+// }
+ }
+ }
+ for ( ; flv->audioSize >= 4 ; ) {
+
+ int mp3FrameSize = 0;
+ int mp3SampleRate = 0;
+ int mp3IsMono = 0;
+ int mp3SamplesPerFrame = 0;
+
+ if ( mp3info(&flv->audioFifo[flv->audioInPos],&mp3FrameSize,&mp3SamplesPerFrame,&mp3SampleRate,&mp3IsMono) ) {
+ if ( flv->audioSize >= mp3FrameSize ) {
+
+ int soundFormat = 0x22;
+ int c=0;
+ FLVFrame *frame = av_malloc(sizeof(FLVFrame));
+
+ flv->audioRate = mp3SampleRate;
+
+ switch (mp3SampleRate) {
+ case 44100:
+ soundFormat |= 0x0C;
+ break;
+ case 22050:
+ soundFormat |= 0x08;
+ break;
+ case 11025:
+ soundFormat |= 0x04;
+ break;
+ }
+
+ if ( !mp3IsMono ) {
+ soundFormat |= 0x01;
+ }
+
+ frame->next = 0;
+ frame->type = 8;
+ frame->flags = soundFormat;
+ frame->timestamp = flv->audioTime;
+ frame->size = mp3FrameSize;
+ frame->data = av_malloc(mp3FrameSize);
+
+ for (;c<mp3FrameSize;c++) {
+ frame->data[c] = flv->audioFifo[(flv->audioInPos+c)%AUDIO_FIFO_SIZE];
+ }
+
+ flv->audioInPos += mp3FrameSize;
+ flv->audioSize -= mp3FrameSize;
+ flv->audioInPos %= AUDIO_FIFO_SIZE;
+ flv->sampleCount += mp3SamplesPerFrame;
+
+ // Reset audio for next round
+ flv->audioTime = -1;
+ // We got audio! Make sure we set this to the global flags on closure
+ flv->hasAudio = 1;
+
+ InsertSorted(flv,frame);
+ }
+ break;
+ }
+ flv->audioInPos ++;
+ flv->audioSize --;
+ flv->audioInPos %= AUDIO_FIFO_SIZE;
+ // no audio in here!
+ flv->audioTime = -1;
+ }
+#endif
+ }
+ Dump(flv,pb,128);
+ put_flush_packet(pb);
+ return 0;
+}
+
+static AVOutputFormat flv_oformat = {
+ "flv",
+ "flv format",
+ "video/x-flashvideo",
+ "flv",
+ sizeof(FLVContext),
+#ifdef CONFIG_MP3LAME
+ CODEC_ID_MP3LAME,
+#else // CONFIG_MP3LAME
+ CODEC_ID_NONE,
+#endif // CONFIG_MP3LAME
+ CODEC_ID_FLV1,
+ flv_write_header,
+ flv_write_packet,
+ flv_write_trailer,
+};
+
+int flvenc_init(void)
+{
+ av_register_output_format(&flv_oformat);
+ return 0;
+}
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