ffmpeg/libavcodec/flvenc.c
Michael Niedermayer 6cb2085278 Merge remote-tracking branch 'qatar/master'
* qatar/master: (27 commits)
  ppc: Add ff_ prefix to nonstatic symbols
  sh4: Add ff_ prefix to nonstatic symbols
  mpegvideo: Add ff_ prefix to nonstatic functions
  rtjpeg: Add ff_ prefix to nonstatic symbols
  rv: Add ff_ prefix to nonstatic symbols
  vp56: Add ff_ prefix to nonstatic symbols
  vorbis: Add ff_ prefix to nonstatic symbols
  msmpeg4: Add ff_ prefix to nonstatic symbols
  vc1: Add ff_ prefix to nonstatic symbols
  msmpeg4: Add ff_ prefixes to nonstatic symbols
  snow: Add ff_ prefix to nonstatic symbols
  mpeg12: Add ff_ prefix to nonstatic symbols
  mpeg4: Add ff_ prefixes to nonstatic symbols
  lagarith: Add ff_ prefix to lag_rac_init
  libavcodec: Add ff_ prefix to j_rev_dct*
  dsputil: Add ff_ prefix to inv_zigzag_direct16
  libavcodec: Prefix fdct_ifast, fdct_ifast248
  dsputil: Add ff_ prefix to the dsputil*_init* functions
  libavcodec: Add ff_ prefix to some nonstatic symbols
  vlc/rl: Add ff_ prefix to the nonstatic symbols
  ...

Conflicts:
	libavcodec/Makefile
	libavcodec/allcodecs.c
	libavcodec/dnxhddec.c
	libavcodec/ffv1.c
	libavcodec/h263.h
	libavcodec/h263dec.c
	libavcodec/h264.c
	libavcodec/mpegvideo.c
	libavcodec/mpegvideo_enc.c
	libavcodec/nuv.c
	libavcodec/ppc/dsputil_ppc.c
	libavcodec/proresdsp.c
	libavcodec/svq3.c
	libavcodec/version.h
	libavformat/dv.h
	libavformat/dvenc.c
	libavformat/matroskadec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-02-16 01:34:37 +01:00

98 lines
3.4 KiB
C

/*
* FLV Encoding specific code.
* This file is part of FFmpeg.
*
* FFmpeg 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 2.1 of the License, or (at your option) any later version.
*
* FFmpeg 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 FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "mpegvideo.h"
#include "h263.h"
#include "flv.h"
void ff_flv_encode_picture_header(MpegEncContext * s, int picture_number)
{
int format;
avpriv_align_put_bits(&s->pb);
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->time_base.num) / //FIXME use timestamp
s->avctx->time_base.den) & 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 == AV_PICTURE_TYPE_P); /* PictureType */
put_bits(&s->pb, 1, 1); /* DeblockingFlag: on */
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= ff_aic_dc_scale_table;
}else{
s->y_dc_scale_table=
s->c_dc_scale_table= ff_mpeg1_dc_scale_table;
}
}
void ff_flv2_encode_ac_esc(PutBitContext *pb, int slevel, int level, int run, int last){
if(level < 64) { // 7-bit level
put_bits(pb, 1, 0);
put_bits(pb, 1, last);
put_bits(pb, 6, run);
put_sbits(pb, 7, slevel);
} else {
/* 11-bit level */
put_bits(pb, 1, 1);
put_bits(pb, 1, last);
put_bits(pb, 6, run);
put_sbits(pb, 11, slevel);
}
}
AVCodec ff_flv_encoder = {
.name = "flv",
.type = AVMEDIA_TYPE_VIDEO,
.id = CODEC_ID_FLV1,
.priv_data_size = sizeof(MpegEncContext),
.init = ff_MPV_encode_init,
.encode = ff_MPV_encode_picture,
.close = ff_MPV_encode_end,
.pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
.long_name= NULL_IF_CONFIG_SMALL("Flash Video (FLV) / Sorenson Spark / Sorenson H.263"),
};