* transcode.c
*****************************************************************************
* Copyright (C) 2001, 2002 VideoLAN
- * $Id: transcode.c,v 1.20 2003/06/30 20:08:21 gbazin Exp $
+ * $Id: transcode.c,v 1.35 2003/10/08 21:01:07 gbazin Exp $
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
*
#include <vlc/vlc.h>
#include <vlc/input.h>
#include <vlc/sout.h>
+#include <vlc/vout.h>
+#include <vlc/decoder.h>
/* ffmpeg header */
#ifdef HAVE_FFMPEG_AVCODEC_H
/* vorbis header */
#ifdef HAVE_VORBIS_VORBISENC_H
# include <vorbis/vorbisenc.h>
+# ifndef OV_ECTL_RATEMANAGE_AVG
+# define OV_ECTL_RATEMANAGE_AVG 0x0
+# endif
#endif
/*****************************************************************************
static void transcode_video_ffmpeg_close ( sout_stream_t *, sout_stream_id_t * );
static int transcode_video_ffmpeg_process( sout_stream_t *, sout_stream_id_t *, sout_buffer_t *, sout_buffer_t ** );
+static int transcode_video_ffmpeg_getframebuf( struct AVCodecContext *, AVFrame *);
+
/*****************************************************************************
* Module descriptor
*****************************************************************************/
int i_vtolerance;
int i_width;
int i_height;
+ int i_b_frames;
int i_key_int;
int i_qmin;
int i_qmax;
- vlc_bool_t b_hq;
+ vlc_bool_t i_hq;
vlc_bool_t b_deinterlace;
int i_crop_top;
int i_crop_bottom;
int i_crop_right;
int i_crop_left;
+
+ mtime_t i_input_pts;
+ mtime_t i_output_pts;
+ mtime_t i_last_ref_pts;
+
+ mtime_t i_buggy_pts_detect;
};
/*****************************************************************************
p_sys->i_width = 0;
p_sys->i_height = 0;
p_sys->i_key_int = -1;
+ p_sys->i_b_frames = 0;
p_sys->i_qmin = 2;
p_sys->i_qmax = 31;
- p_sys->b_hq = VLC_FALSE;
+#if LIBAVCODEC_BUILD >= 4673
+ p_sys->i_hq = FF_MB_DECISION_SIMPLE;
+#else
+ p_sys->i_hq = VLC_FALSE;
+#endif
p_sys->b_deinterlace= VLC_FALSE;
p_sys->i_crop_top = 0;
}
}
- msg_Dbg( p_stream, "codec audio=%4.4s %dHz %d channels %dKb/s",
- fcc,
+ msg_Dbg( p_stream, "codec audio=%4.4s %dHz %d channels %dKb/s", fcc,
p_sys->i_sample_rate, p_sys->i_channels,
p_sys->i_abitrate / 1024 );
}
{
p_sys->i_key_int = atoi( val );
}
+ if( ( val = sout_cfg_find_value( p_stream->p_cfg, "bframes" ) ) )
+ {
+ p_sys->i_b_frames = atoi( val );
+ }
+#if LIBAVCODEC_BUILD >= 4673
+ if( ( val = sout_cfg_find_value( p_stream->p_cfg, "hq" ) ) )
+ {
+ if( !strcmp( val, "rd" ) )
+ {
+ p_sys->i_hq = FF_MB_DECISION_RD;
+ }
+ else if( !strcmp( val, "bits" ) )
+ {
+ p_sys->i_hq = FF_MB_DECISION_BITS;
+ }
+ else if( !strcmp( val, "simple" ) )
+ {
+ p_sys->i_hq = FF_MB_DECISION_SIMPLE;
+ }
+ else
+ {
+ p_sys->i_hq = FF_MB_DECISION_RD;
+ }
+ }
+#else
if( sout_cfg_find( p_stream->p_cfg, "hq" ) )
{
- p_sys->b_hq = VLC_TRUE;
+ p_sys->i_hq = VLC_TRUE;
}
+#endif
if( ( val = sout_cfg_find_value( p_stream->p_cfg, "qmin" ) ) )
{
p_sys->i_qmin = atoi( val );
avcodec_init();
avcodec_register_all();
+ /* ffmpeg needs some padding at the end of each buffer */
+ p_stream->p_sout->i_padding += FF_INPUT_BUFFER_PADDING_SIZE;
+
return VLC_SUCCESS;
}
/* id of the out stream */
void *id;
+ /* Encoder */
+ encoder_t *p_encoder;
+
/* ffmpeg part */
AVCodec *ff_dec;
AVCodecContext *ff_dec_c;
id = malloc( sizeof( sout_stream_id_t ) );
id->i_dts = 0;
id->id = NULL;
+ id->p_encoder = NULL;
+
if( p_fmt->i_cat == AUDIO_ES && p_sys->i_acodec != 0 )
{
msg_Dbg( p_stream,
/* open output stream */
id->id = p_sys->p_out->pf_add( p_sys->p_out, &id->f_dst );
id->b_transcode = VLC_TRUE;
+
+ if( id->id == NULL )
+ {
+ free( id );
+ return NULL;
+ }
}
else if( p_fmt->i_cat == VIDEO_ES && p_sys->i_vcodec != 0 )
{
{
/* audio */
{ VLC_FOURCC( 'm', 'p', 'g', 'a' ), CODEC_ID_MP2 },
+ { VLC_FOURCC( 'm', 'p', '3', ' ' ), CODEC_ID_MP3LAME },
+ { VLC_FOURCC( 'm', 'p', '4', 'a' ), CODEC_ID_AAC },
{ VLC_FOURCC( 'a', '5', '2', ' ' ), CODEC_ID_AC3 },
{ VLC_FOURCC( 'a', 'c', '3', ' ' ), CODEC_ID_AC3 },
{ VLC_FOURCC( 'w', 'm', 'a', '1' ), CODEC_ID_WMAV1 },
{ VLC_FOURCC( 'w', 'm', 'a', '2' ), CODEC_ID_WMAV2 },
{ VLC_FOURCC( 'v', 'o', 'r', 'b' ), CODEC_ID_VORBIS },
+ { VLC_FOURCC( 'a', 'l', 'a', 'w' ), CODEC_ID_PCM_ALAW },
/* video */
- { VLC_FOURCC( 'm', 'p', '4', 'v'), CODEC_ID_MPEG4 },
{ VLC_FOURCC( 'm', 'p', 'g', 'v' ), CODEC_ID_MPEG1VIDEO },
+ { VLC_FOURCC( 'm', 'p', '1', 'v' ), CODEC_ID_MPEG1VIDEO },
+#if LIBAVCODEC_BUILD >= 4676
+ { VLC_FOURCC( 'm', 'p', '2', 'v' ), CODEC_ID_MPEG2VIDEO },
+#endif
+ { VLC_FOURCC( 'm', 'p', '4', 'v'), CODEC_ID_MPEG4 },
{ VLC_FOURCC( 'D', 'I', 'V', '1' ), CODEC_ID_MSMPEG4V1 },
{ VLC_FOURCC( 'D', 'I', 'V', '2' ), CODEC_ID_MSMPEG4V2 },
{ VLC_FOURCC( 'D', 'I', 'V', '3' ), CODEC_ID_MSMPEG4V3 },
{ VLC_FOURCC( 'H', '2', '6', '3' ), CODEC_ID_H263 },
{ VLC_FOURCC( 'I', '2', '6', '3' ), CODEC_ID_H263I },
+ { VLC_FOURCC( 'h', 'u', 'f', 'f' ), CODEC_ID_HUFFYUV },
{ VLC_FOURCC( 'W', 'M', 'V', '1' ), CODEC_ID_WMV1 },
{ VLC_FOURCC( 'W', 'M', 'V', '2' ), CODEC_ID_WMV2 },
{ VLC_FOURCC( 'M', 'J', 'P', 'G' ), CODEC_ID_MJPEG },
{ VLC_FOURCC( 'I', '4', '2', '0' ), CODEC_ID_RAWVIDEO },
{ VLC_FOURCC( 'I', '4', '2', '2' ), CODEC_ID_RAWVIDEO },
{ VLC_FOURCC( 'I', '4', '4', '4' ), CODEC_ID_RAWVIDEO },
+ { VLC_FOURCC( 'R', 'V', '1', '5' ), CODEC_ID_RAWVIDEO },
+ { VLC_FOURCC( 'R', 'V', '1', '6' ), CODEC_ID_RAWVIDEO },
{ VLC_FOURCC( 'R', 'V', '2', '4' ), CODEC_ID_RAWVIDEO },
+ { VLC_FOURCC( 'R', 'V', '3', '2' ), CODEC_ID_RAWVIDEO },
{ VLC_FOURCC( 'Y', 'U', 'Y', '2' ), CODEC_ID_RAWVIDEO },
{ VLC_FOURCC( 0, 0, 0, 0 ), 0 }
return PIX_FMT_YUV422P;
case VLC_FOURCC( 'I', '4', '4', '4' ):
return PIX_FMT_YUV444P;
+ case VLC_FOURCC( 'R', 'V', '1', '5' ):
+ return PIX_FMT_RGB555;
+ case VLC_FOURCC( 'R', 'V', '1', '6' ):
+ return PIX_FMT_RGB565;
case VLC_FOURCC( 'R', 'V', '2', '4' ):
return PIX_FMT_RGB24;
+ case VLC_FOURCC( 'R', 'V', '3', '2' ):
+ return PIX_FMT_RGBA32;
+ case VLC_FOURCC( 'G', 'R', 'E', 'Y' ):
+ return PIX_FMT_GRAY8;
case VLC_FOURCC( 'Y', 'U', 'Y', '2' ):
return PIX_FMT_YUV422;
default:
i_ff_codec = get_ff_codec( id->f_src.i_fourcc );
if( i_ff_codec == 0 )
{
- msg_Err( p_stream, "cannot find decoder" );
+ msg_Err( p_stream, "cannot find decoder id" );
return VLC_EGENERIC;
}
id->ff_dec = avcodec_find_decoder( i_ff_codec );
if( !id->ff_dec )
{
- msg_Err( p_stream, "cannot find decoder" );
+ msg_Err( p_stream, "cannot find decoder (avcodec)" );
return VLC_EGENERIC;
}
id->i_buffer_out_pos = 0;
id->p_buffer_out = malloc( id->i_buffer_out );
+ /* Sanity check for audio channels */
+ id->f_dst.i_channels = __MIN( id->f_dst.i_channels, id->f_src.i_channels );
+
#ifdef HAVE_VORBIS_VORBISENC_H
if( id->f_dst.i_fourcc == VLC_FOURCC('v','o','r','b') )
{
i_ff_codec = get_ff_codec( id->f_dst.i_fourcc );
if( i_ff_codec == 0 )
{
- msg_Err( p_stream, "cannot find encoder" );
+ msg_Err( p_stream, "cannot find encoder id" );
return VLC_EGENERIC;
}
id->ff_enc = avcodec_find_encoder( i_ff_codec );
if( !id->ff_enc )
{
- msg_Err( p_stream, "cannot find encoder" );
+ msg_Err( p_stream, "cannot find encoder (avcodec)" );
return VLC_EGENERIC;
}
+ /* Hack for mp3 transcoding support */
+ if( id->f_dst.i_fourcc == VLC_FOURCC( 'm','p','3',' ' ) )
+ {
+ id->f_dst.i_fourcc = VLC_FOURCC( 'm','p','g','a' );
+ }
+
id->ff_enc_c = avcodec_alloc_context();
id->ff_enc_c->bit_rate = id->f_dst.i_bitrate;
id->ff_enc_c->sample_rate = id->f_dst.i_sample_rate;
id->ff_enc_c->channels = id->f_dst.i_channels;
+ /* Make sure we get extradata filled by the encoder */
+ id->ff_enc_c->extradata_size = 0;
+ id->ff_enc_c->extradata = NULL;
+ id->ff_enc_c->flags |= CODEC_FLAG_GLOBAL_HEADER;
+
if( avcodec_open( id->ff_enc_c, id->ff_enc ) )
{
- msg_Err( p_stream, "cannot open encoder" );
- return VLC_EGENERIC;
+ if( id->ff_enc_c->channels > 2 )
+ {
+ id->ff_enc_c->channels = 2;
+ id->f_dst.i_channels = 2;
+ if( avcodec_open( id->ff_enc_c, id->ff_enc ) )
+ {
+ msg_Err( p_stream, "cannot open encoder" );
+ return VLC_EGENERIC;
+ }
+ msg_Warn( p_stream, "stereo mode selected (codec limitation)" );
+ }
+ else
+ {
+ msg_Err( p_stream, "cannot open encoder" );
+ return VLC_EGENERIC;
+ }
}
+ id->f_dst.i_extra_data = id->ff_enc_c->extradata_size;
+ id->f_dst.p_extra_data = id->ff_enc_c->extradata;
+ id->ff_enc_c->flags &= ~CODEC_FLAG_GLOBAL_HEADER;
+
return VLC_SUCCESS;
}
#endif
id->i_dts = in->i_dts -
(mtime_t)1000000 *
- (mtime_t)(id->i_buffer_pos / 2 / id->ff_enc_c->channels )/
- (mtime_t)id->ff_enc_c->sample_rate;
+ (mtime_t)(id->i_buffer_pos / 2 / id->ff_dec_c->channels )/
+ (mtime_t)id->ff_dec_c->sample_rate;
if( id->i_buffer_in_pos + (int)in->i_size > id->i_buffer_in )
{
do
{
+ int i_buffer_pos;
+
/* decode as much data as possible */
if( id->ff_dec )
{
id->i_buffer_in_pos -= i_used;
}
+ i_buffer_pos = id->i_buffer_pos;
+
/* encode as much data as possible */
#ifdef HAVE_VORBIS_VORBISENC_H
sout_buffer_t *p_out;
ogg_packet op;
- if( id->i_buffer_pos == 0 )
- {
- break;
- }
-
if( !id->b_headers_sent )
{
ogg_packet header[3];
id->b_headers_sent = VLC_TRUE;
}
- i_samples = id->i_buffer_pos / id->f_dst.i_channels / 2;
+ i_samples = id->i_buffer_pos / id->f_src.i_channels / 2;
id->i_samples_delay += i_samples;
id->i_buffer_pos = 0;
for( j = 0 ; j < i_samples ; j++ )
{
buffer[i][j]= ((float)( ((int16_t *)id->p_buffer)
- [j*id->f_dst.i_channels + i ] ))/ 32768.f;
+ [j*id->f_src.i_channels + i ] ))/ 32768.f;
}
}
id->i_samples_delay -= i_samples;
- static mtime_t i_old_dts = 0;
-
/* update dts */
id->i_dts += p_out->i_length;
- i_old_dts = id->i_dts;
sout_BufferChain( out, p_out );
}
for( ;; )
{
int i_frame_size = id->ff_enc_c->frame_size * 2 *
- id->ff_enc_c->channels;
- int i_out_size;
+ id->ff_dec_c->channels;
+ int i_out_size, i, j;
sout_buffer_t *p_out;
+ int16_t *p_buffer = (int16_t *)(id->p_buffer + i_buffer_pos -
+ id->i_buffer_pos);
if( id->i_buffer_pos < i_frame_size )
{
break;
}
+ if( id->ff_dec_c->channels != id->ff_enc_c->channels )
+ {
+ /* dumb downmixing */
+ for( i = 0; i < id->ff_enc_c->frame_size; i++ )
+ {
+ for( j = 0 ; j < id->f_dst.i_channels; j++ )
+ {
+ p_buffer[i*id->f_dst.i_channels+j] = p_buffer[i*id->f_src.i_channels+j];
+ }
+ }
+ }
+
/* msg_Warn( p_stream, "avcodec_encode_audio: frame size%d",
i_frame_size); */
i_out_size = avcodec_encode_audio( id->ff_enc_c,
- id->p_buffer_out, id->i_buffer_out,
- (int16_t*)id->p_buffer );
+ id->p_buffer_out, id->i_buffer_out, p_buffer );
if( i_out_size <= 0 )
{
break;
}
- memmove( id->p_buffer,
- &id->p_buffer[i_frame_size],
- id->i_buffer - i_frame_size );
+
id->i_buffer_pos -= i_frame_size;
p_out = sout_BufferNew( p_stream->p_sout, i_out_size );
sout_BufferChain( out, p_out );
}
+ /* Copy the remaining raw samples */
+ if( id->i_buffer_pos != 0 )
+ {
+ memmove( id->p_buffer,
+ &id->p_buffer[i_buffer_pos - id->i_buffer_pos],
+ id->i_buffer_pos );
+ }
+
} while( b_again );
return VLC_SUCCESS;
id->f_src.i_fourcc == VLC_FOURCC( 'I', '4', '2', '2' ) ||
id->f_src.i_fourcc == VLC_FOURCC( 'I', '4', '4', '4' ) ||
id->f_src.i_fourcc == VLC_FOURCC( 'Y', 'U', 'Y', '2' ) ||
- id->f_src.i_fourcc == VLC_FOURCC( 'R', 'V', '2', '4' ) )
+ id->f_src.i_fourcc == VLC_FOURCC( 'R', 'V', '1', '5' ) ||
+ id->f_src.i_fourcc == VLC_FOURCC( 'R', 'V', '1', '6' ) ||
+ id->f_src.i_fourcc == VLC_FOURCC( 'R', 'V', '2', '4' ) ||
+ id->f_src.i_fourcc == VLC_FOURCC( 'R', 'V', '3', '2' ) ||
+ id->f_src.i_fourcc == VLC_FOURCC( 'G', 'R', 'E', 'Y' ) )
{
id->ff_dec = NULL;
id->ff_dec_c = avcodec_alloc_context();
id->ff_dec_c->extradata = id->f_src.p_extra_data;
id->ff_dec_c->workaround_bugs = FF_BUG_AUTODETECT;
id->ff_dec_c->error_resilience= -1;
- if( id->ff_dec->capabilities & CODEC_CAP_TRUNCATED )
- {
- id->ff_dec_c->flags |= CODEC_FLAG_TRUNCATED;
- }
+ id->ff_dec_c->get_buffer = transcode_video_ffmpeg_getframebuf;
+ id->ff_dec_c->opaque = p_sys;
if( avcodec_open( id->ff_dec_c, id->ff_dec ) < 0 )
{
{
int b_gotpicture;
AVFrame frame;
-
- avcodec_decode_video( id->ff_dec_c, &frame,
- &b_gotpicture,
- id->ff_dec_c->extradata, id->ff_dec_c->extradata_size );
+ uint8_t *p_vol = malloc( id->ff_dec_c->extradata_size +
+ FF_INPUT_BUFFER_PADDING_SIZE );
+
+ memcpy( p_vol, id->ff_dec_c->extradata,
+ id->ff_dec_c->extradata_size );
+ memset( p_vol + id->ff_dec_c->extradata_size, 0,
+ FF_INPUT_BUFFER_PADDING_SIZE );
+
+ avcodec_decode_video( id->ff_dec_c, &frame, &b_gotpicture,
+ id->ff_dec_c->extradata,
+ id->ff_dec_c->extradata_size );
+ free( p_vol );
}
}
/* find encoder */
+ id->ff_enc = NULL;
i_ff_codec = get_ff_codec( id->f_dst.i_fourcc );
- if( i_ff_codec == 0 )
+ if( i_ff_codec != 0 )
{
- msg_Err( p_stream, "cannot find encoder" );
- return VLC_EGENERIC;
+ id->ff_enc = avcodec_find_encoder( i_ff_codec );
}
- id->ff_enc = avcodec_find_encoder( i_ff_codec );
+ /* Hack for external encoders */
if( !id->ff_enc )
+ {
+ id->p_encoder = vlc_object_create( p_stream, VLC_OBJECT_ENCODER );
+ id->p_encoder->i_fourcc = id->f_dst.i_fourcc;
+ id->p_encoder->format.video.i_width = p_sys->i_width;
+ id->p_encoder->format.video.i_height = p_sys->i_height;
+ id->p_encoder->i_bitrate = p_sys->i_vbitrate;
+
+ if( id->p_encoder->format.video.i_width <= 0 )
+ {
+ id->p_encoder->format.video.i_width = id->f_dst.i_width =
+ id->ff_dec_c->width - p_sys->i_crop_left -
+ p_sys->i_crop_right;
+ }
+ if( id->p_encoder->format.video.i_height <= 0 )
+ {
+ id->p_encoder->format.video.i_height = id->f_dst.i_height =
+ id->ff_dec_c->height - p_sys->i_crop_top -
+ p_sys->i_crop_bottom;
+ }
+
+ id->p_encoder->p_module =
+ module_Need( id->p_encoder, "video encoder", NULL );
+
+ if( !id->p_encoder->p_module )
+ {
+ free( id->p_encoder );
+ id->p_encoder = NULL;
+ }
+ }
+ /* End hack for external encoders */
+
+ if( !id->ff_enc && !id->p_encoder )
{
msg_Err( p_stream, "cannot find encoder" );
return VLC_EGENERIC;
}
+ /* XXX open it only when we have the first frame */
+ id->b_enc_inited = VLC_FALSE;
+ id->i_buffer_in = 0;
+ id->i_buffer_in_pos = 0;
+ id->p_buffer_in = NULL;
+
+ id->i_buffer = 3*1024*1024;
+ id->i_buffer_pos = 0;
+ id->p_buffer = malloc( id->i_buffer );
+
+ id->i_buffer_out = 0;
+ id->i_buffer_out_pos = 0;
+ id->p_buffer_out = NULL;
+
+ id->p_ff_pic = avcodec_alloc_frame();
+ id->p_ff_pic_tmp0 = NULL;
+ id->p_ff_pic_tmp1 = NULL;
+ id->p_ff_pic_tmp2 = NULL;
+ id->p_vresample = NULL;
+
+ p_sys->i_last_ref_pts = 0;
+ p_sys->i_buggy_pts_detect = 0;
+
+ /* This is enough for external encoders */
+ if( id->p_encoder->p_module ) return VLC_SUCCESS;
+
+ if( id->f_dst.i_fourcc == VLC_FOURCC( 'm','p','1','v' )||
+ id->f_dst.i_fourcc == VLC_FOURCC( 'm','p','2','v' ) )
+ {
+ id->f_dst.i_fourcc = VLC_FOURCC( 'm','p','g','v' );
+ }
+
id->ff_enc_c = avcodec_alloc_context();
id->ff_enc_c->width = id->f_dst.i_width;
id->ff_enc_c->height = id->f_dst.i_height;
id->ff_enc_c->bit_rate = id->f_dst.i_bitrate;
+
+ if( id->ff_dec )
+ {
+ id->ff_enc_c->frame_rate = id->ff_dec_c->frame_rate;
#if LIBAVCODEC_BUILD >= 4662
- id->ff_enc_c->frame_rate = 25 ; /* FIXME as it break mpeg */
- id->ff_enc_c->frame_rate_base= 1;
+ id->ff_enc_c->frame_rate_base= id->ff_dec_c->frame_rate_base;
+#endif
+ }
+ else
+ {
+#if LIBAVCODEC_BUILD >= 4662
+ id->ff_enc_c->frame_rate = 25 ; /* FIXME as it break mpeg */
+ id->ff_enc_c->frame_rate_base= 1;
#else
- id->ff_enc_c->frame_rate = 25 * FRAME_RATE_BASE;
+ id->ff_enc_c->frame_rate = 25 * FRAME_RATE_BASE;
#endif
+ }
+
id->ff_enc_c->gop_size = p_sys->i_key_int >= 0 ? p_sys->i_key_int : 50;
+ id->ff_enc_c->max_b_frames = __MIN( p_sys->i_b_frames, FF_MAX_B_FRAMES );
+ id->ff_enc_c->b_frame_strategy = 0;
+ id->ff_enc_c->b_quant_factor = 2.0;
if( p_sys->i_vtolerance >= 0 )
{
}
id->ff_enc_c->qmin = p_sys->i_qmin;
id->ff_enc_c->qmax = p_sys->i_qmax;
- if( p_sys->b_hq )
+
+#if LIBAVCODEC_BUILD >= 4673
+ id->ff_enc_c->mb_decision = p_sys->i_hq;
+#else
+ if( p_sys->i_hq )
{
id->ff_enc_c->flags |= CODEC_FLAG_HQ;
}
+#endif
if( i_ff_codec == CODEC_ID_RAWVIDEO )
{
id->ff_enc_c->pix_fmt = get_ff_chroma( id->f_dst.i_fourcc );
}
- /* XXX open it only when we have the first frame */
- id->b_enc_inited = VLC_FALSE;
- id->i_buffer_in = 0;
- id->i_buffer_in_pos = 0;
- id->p_buffer_in = NULL;
-
- id->i_buffer = 3*1024*1024;
- id->i_buffer_pos = 0;
- id->p_buffer = malloc( id->i_buffer );
- id->i_buffer_out = 0;
- id->i_buffer_out_pos = 0;
- id->p_buffer_out = NULL;
-
- id->p_ff_pic = avcodec_alloc_frame();
- id->p_ff_pic_tmp0 = NULL;
- id->p_ff_pic_tmp1 = NULL;
- id->p_ff_pic_tmp2 = NULL;
- id->p_vresample = NULL;
return VLC_SUCCESS;
}
{
avcodec_close( id->ff_dec_c );
}
- if( id->b_enc_inited )
+ if( id->p_encoder )
+ {
+ /* External encoding */
+ module_Unneed( p_stream, id->p_encoder->p_module );
+ vlc_object_destroy( id->p_encoder->p_module );
+ }
+ else if( id->b_enc_inited )
{
avcodec_close( id->ff_enc_c );
}
free( id->ff_dec_c );
free( id->ff_enc_c );
-
free( id->p_buffer );
}
-static int transcode_video_ffmpeg_process( sout_stream_t *p_stream, sout_stream_id_t *id,
- sout_buffer_t *in, sout_buffer_t **out )
+static int transcode_video_ffmpeg_process( sout_stream_t *p_stream,
+ sout_stream_id_t *id, sout_buffer_t *in, sout_buffer_t **out )
{
sout_stream_sys_t *p_sys = p_stream->p_sys;
int i_used;
{
/* decode frame */
frame = id->p_ff_pic;
+ p_sys->i_input_pts = in->i_pts;
if( id->ff_dec )
{
i_used = avcodec_decode_video( id->ff_dec_c, frame,
id->ff_dec_c->width, id->ff_dec_c->height );
i_used = i_data;
b_gotpicture = 1;
+
+ /* Set PTS */
+ frame->pts = p_sys->i_input_pts;
}
if( i_used < 0 )
return VLC_SUCCESS;
}
- if( !id->b_enc_inited )
+ /* Get the pts of the decoded frame if any, otherwise keep the
+ * interpolated one */
+ if( frame->pts > 0 )
+ {
+ p_sys->i_output_pts = frame->pts;
+ }
+
+ if( !id->b_enc_inited && id->p_encoder )
+ {
+ block_t *p_block;
+
+ /* XXX hack because of copy packetizer and mpeg4video that can fail
+ * detecting size */
+#if 0
+ if( id->p_encoder->i_width <= 0 )
+ {
+ id->p_encoder->i_width = id->f_dst.i_width =
+ id->ff_dec_c->width - p_sys->i_crop_left -
+ p_sys->i_crop_right;
+ }
+ if( id->p_encoder->i_height <= 0 )
+ {
+ id->p_encoder->i_height = id->f_dst.i_height =
+ id->ff_dec_c->height - p_sys->i_crop_top -
+ p_sys->i_crop_bottom;
+ }
+#endif
+
+ id->p_encoder->i_bitrate = p_sys->i_vbitrate;
+
+ if( !( id->id = p_stream->p_sys->p_out->pf_add( p_stream->p_sys->p_out, &id->f_dst ) ) )
+ {
+ msg_Err( p_stream, "cannot add this stream" );
+ id->b_transcode = VLC_FALSE;
+ return VLC_EGENERIC;
+ }
+
+ while( (p_block = id->p_encoder->pf_header( id->p_encoder )) )
+ {
+ sout_buffer_t *p_out;
+ p_out = sout_BufferNew( p_stream->p_sout, p_block->i_buffer );
+ memcpy( p_out->p_buffer, p_block->p_buffer, p_block->i_buffer);
+ sout_BufferChain( out, p_out );
+ }
+
+ id->b_enc_inited = VLC_TRUE;
+ }
+ else if( !id->b_enc_inited )
{
- /* XXX hack because of copy packetizer and mpeg4video that can failed
- detecting size */
+ /* XXX hack because of copy packetizer and mpeg4video that can fail
+ * detecting size */
if( id->ff_enc_c->width <= 0 )
{
id->ff_enc_c->width =
id->f_dst.i_height = id->ff_dec_c->height - p_sys->i_crop_top - p_sys->i_crop_bottom;
}
+ /* Make sure we get extradata filled by the encoder */
+ id->ff_enc_c->extradata_size = 0;
+ id->ff_enc_c->extradata = NULL;
+ id->ff_enc_c->flags |= CODEC_FLAG_GLOBAL_HEADER;
+
if( avcodec_open( id->ff_enc_c, id->ff_enc ) )
{
msg_Err( p_stream, "cannot open encoder" );
return VLC_EGENERIC;
}
+ id->f_dst.i_extra_data = id->ff_enc_c->extradata_size;
+ id->f_dst.p_extra_data = id->ff_enc_c->extradata;
+ id->ff_enc_c->flags &= ~CODEC_FLAG_GLOBAL_HEADER;
+
if( !( id->id = p_stream->p_sys->p_out->pf_add( p_stream->p_sys->p_out, &id->f_dst ) ) )
{
msg_Err( p_stream, "cannot add this stream" );
}
/* convert pix format */
+ if( !id->p_encoder )
if( id->ff_dec_c->pix_fmt != id->ff_enc_c->pix_fmt )
{
if( id->p_ff_pic_tmp1 == NULL )
}
/* convert size and crop */
+ if( !id->p_encoder )
if( id->ff_dec_c->width != id->ff_enc_c->width ||
id->ff_dec_c->height != id->ff_enc_c->height ||
p_sys->i_crop_top > 0 || p_sys->i_crop_bottom > 0 ||
p_stream->p_sys->i_crop_right );
}
- img_resample( id->p_vresample, (AVPicture*)id->p_ff_pic_tmp2, (AVPicture*)frame );
+ img_resample( id->p_vresample, (AVPicture*)id->p_ff_pic_tmp2,
+ (AVPicture*)frame );
frame = id->p_ff_pic_tmp2;
}
- i_out = avcodec_encode_video( id->ff_enc_c, id->p_buffer, id->i_buffer, frame );
+ /* Set the pts of the frame being encoded (segfaults with mpeg4!)*/
+ if( id->f_dst.i_fourcc == VLC_FOURCC( 'm', 'p', 'g', 'v' ) )
+ frame->pts = p_sys->i_output_pts;
+ else
+ frame->pts = 0;
+
+ /* Interpolate the next PTS
+ * (needed by the mpeg video packetizer which can send pts <= 0 ) */
+ if( id->ff_dec_c && id->ff_dec_c->frame_rate > 0 )
+ {
+ p_sys->i_output_pts += I64C(1000000) * (2 + frame->repeat_pict) *
+ id->ff_dec_c->frame_rate_base / (2 * id->ff_dec_c->frame_rate);
+ }
+
+ if( id->p_encoder )
+ {
+ /* External encoding */
+ block_t *p_block;
+ picture_t pic;
+ int i_plane;
+
+ vout_InitPicture( VLC_OBJECT(p_stream), &pic,
+ id->ff_dec_c->width, id->ff_dec_c->height,
+ VLC_FOURCC('I','4','2','0') );
+
+ for( i_plane = 0; i_plane < pic.i_planes; i_plane++ )
+ {
+ pic.p[i_plane].p_pixels = frame->data[i_plane];
+ pic.p[i_plane].i_pitch = frame->linesize[i_plane];
+ }
+
+ pic.date = frame->pts;
+
+ p_block = id->p_encoder->pf_encode_video( id->p_encoder, &pic );
+ if( p_block )
+ {
+ sout_buffer_t *p_out;
+ p_out = sout_BufferNew( p_stream->p_sout, p_block->i_buffer );
+ memcpy( p_out->p_buffer, p_block->p_buffer, p_block->i_buffer);
+ sout_BufferChain( out, p_out );
+ }
+
+ return VLC_SUCCESS;
+ }
+
+ /* Let ffmpeg select the frame type */
+ frame->pict_type = 0;
+
+ i_out = avcodec_encode_video( id->ff_enc_c, id->p_buffer,
+ id->i_buffer, frame );
if( i_out > 0 )
{
sout_buffer_t *p_out;
memcpy( p_out->p_buffer, id->p_buffer, i_out );
p_out->i_size = i_out;
- p_out->i_length = in->i_length;
- p_out->i_dts = in->i_dts;
- p_out->i_pts = in->i_dts; /* FIXME */
+
+ if( id->ff_enc_c->coded_frame->pts != 0 &&
+ p_sys->i_buggy_pts_detect != id->ff_enc_c->coded_frame->pts )
+ {
+ p_sys->i_buggy_pts_detect = id->ff_enc_c->coded_frame->pts;
+
+ /* FIXME, 3-2 pulldown is not handled correctly */
+ p_out->i_length = in->i_length;
+ p_out->i_pts = id->ff_enc_c->coded_frame->pts;
+
+ if( !id->ff_enc_c->delay ||
+ ( id->ff_enc_c->coded_frame->pict_type != FF_I_TYPE &&
+ id->ff_enc_c->coded_frame->pict_type != FF_P_TYPE ) )
+ {
+ p_out->i_dts = p_out->i_pts;
+ }
+ else
+ {
+ if( p_sys->i_last_ref_pts )
+ {
+ p_out->i_dts = p_sys->i_last_ref_pts;
+ }
+ else
+ {
+ /* Let's put something sensible */
+ p_out->i_dts = p_out->i_pts;
+ }
+
+ p_sys->i_last_ref_pts = p_out->i_pts;
+ }
+ }
+ else
+ {
+ /* Buggy libavcodec which doesn't update coded_frame->pts
+ * correctly */
+ p_out->i_length = in->i_length;
+ p_out->i_dts = in->i_dts;
+ p_out->i_pts = in->i_dts;
+ }
sout_BufferChain( out, p_out );
}
return VLC_SUCCESS;
}
+
+/*****************************************************************************
+ * transcode_video_ffmpeg_getframebuf:
+ *
+ * Callback used by ffmpeg to get a frame buffer.
+ * We use it to get the right PTS for each decoded picture.
+ *****************************************************************************/
+static int transcode_video_ffmpeg_getframebuf(struct AVCodecContext *p_context,
+ AVFrame *p_frame)
+{
+ sout_stream_sys_t *p_sys = (sout_stream_sys_t *)p_context->opaque;
+
+ /* Set PTS */
+ p_frame->pts = p_sys->i_input_pts;
+
+ return avcodec_default_get_buffer( p_context, p_frame );
+}
projects / vlc / blobdiff