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| author | Michael Niedermayer <michaelni@gmx.at> | 2011-09-25 02:54:20 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2011-09-25 04:33:16 +0200 |
| commit | f2f28861da6a332712eb632e98010d1a7838f43a (patch) | |
| tree | 8f2c99b0e5d260585a623ee8437e6ae9ab764ece /libavcodec/mpegvideo_enc.c | |
| parent | ccecab4a0d7f3f4f296551c2e22bbf12af7d14e8 (diff) | |
| download | ffmpeg-f2f28861da6a332712eb632e98010d1a7838f43a.tar.gz | |
AMV video encoder.
Authors are Vladimir Voroshilov and Dobrica Pavlinušić based on svn blame/log
For full details of authorship see http://code.google.com/p/amv-codec-tools/
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/mpegvideo_enc.c')
| -rw-r--r-- | libavcodec/mpegvideo_enc.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/libavcodec/mpegvideo_enc.c b/libavcodec/mpegvideo_enc.c index 65eff63c2c..c9c67d0e63 100644 --- a/libavcodec/mpegvideo_enc.c +++ b/libavcodec/mpegvideo_enc.c @@ -265,6 +265,7 @@ av_cold int MPV_encode_init(AVCodecContext *avctx) } break; case CODEC_ID_MJPEG: + case CODEC_ID_AMV: if(avctx->pix_fmt != PIX_FMT_YUVJ420P && avctx->pix_fmt != PIX_FMT_YUVJ422P && ((avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P) || avctx->strict_std_compliance>FF_COMPLIANCE_UNOFFICIAL)){ av_log(avctx, AV_LOG_ERROR, "colorspace not supported in jpeg\n"); @@ -530,6 +531,11 @@ av_cold int MPV_encode_init(AVCodecContext *avctx) if(s->mpeg_quant || s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO || s->codec_id==CODEC_ID_MJPEG){ s->intra_quant_bias= 3<<(QUANT_BIAS_SHIFT-3); //(a + x*3/8)/x s->inter_quant_bias= 0; + }else if(s->codec_id==CODEC_ID_AMV){ + s->intra_quant_bias= 0; + s->inter_quant_bias= 0; + s->fixed_qscale = 1; + s->adaptive_quant = 0; }else{ s->intra_quant_bias=0; s->inter_quant_bias=-(1<<(QUANT_BIAS_SHIFT-2)); //(a - x/4)/x @@ -540,6 +546,8 @@ av_cold int MPV_encode_init(AVCodecContext *avctx) if(avctx->inter_quant_bias != FF_DEFAULT_QUANT_BIAS) s->inter_quant_bias= avctx->inter_quant_bias; + av_log(avctx, AV_LOG_DEBUG, "intra_quant_bias = %d inter_quant_bias = %d\n",s->intra_quant_bias,s->inter_quant_bias); + avcodec_get_chroma_sub_sample(avctx->pix_fmt, &chroma_h_shift, &chroma_v_shift); if(avctx->codec_id == CODEC_ID_MPEG4 && s->avctx->time_base.den > (1<<16)-1){ @@ -564,6 +572,7 @@ av_cold int MPV_encode_init(AVCodecContext *avctx) break; case CODEC_ID_LJPEG: case CODEC_ID_MJPEG: + case CODEC_ID_AMV: s->out_format = FMT_MJPEG; s->intra_only = 1; /* force intra only for jpeg */ if(avctx->codec->id == CODEC_ID_LJPEG && avctx->pix_fmt == PIX_FMT_BGRA){ @@ -1788,6 +1797,7 @@ static av_always_inline void encode_mb_internal(MpegEncContext *s, int motion_x, h263_encode_mb(s, s->block, motion_x, motion_y); break; case CODEC_ID_MJPEG: + case CODEC_ID_AMV: if (CONFIG_MJPEG_ENCODER) ff_mjpeg_encode_mb(s, s->block); break; |