* transcode.c
*****************************************************************************
* Copyright (C) 2001, 2002 VideoLAN
- * $Id: transcode.c,v 1.29 2003/08/09 14:59:24 gbazin Exp $
+ * $Id: transcode.c,v 1.41 2003/10/09 19:31:38 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
vlc_fourcc_t b_transcode;
sout_format_t f_src; /* only if transcoding */
sout_format_t f_dst; /* " " " */
+ unsigned int i_inter_pixfmt; /* intermediary format when transcoding */
/* 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,
/* 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( '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 },
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 ) )
{
if( id->ff_enc_c->channels > 2 )
}
}
+ 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;
}
p_out->i_size = header[i].bytes;
p_out->i_length = 0;
- p_out->i_dts = p_out->i_pts = 0;
+ p_out->i_dts = p_out->i_pts = id->i_dts;
sout_BufferChain( out, p_out );
}
/* find encoder */
+ id->ff_enc = id->ff_enc_c = 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 && 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->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;
-
- p_sys->i_last_ref_pts = 0;
- p_sys->i_buggy_pts_detect = 0;
return VLC_SUCCESS;
}
{
avcodec_close( id->ff_dec_c );
}
- if( id->b_enc_inited )
+ if( id->p_encoder )
+ {
+ /* External encoding */
+ module_Unneed( id->p_encoder, 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 );
-
+ if( id->ff_enc_c ) free( id->ff_enc_c );
free( id->p_buffer );
}
p_sys->i_output_pts = frame->pts;
}
- if( !id->b_enc_inited )
+ 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);
+ p_out->i_dts = id->i_dts;
+ p_out->i_pts = id->i_dts;
+ sout_BufferChain( out, p_out );
+ }
+
+ id->i_inter_pixfmt =
+ get_ff_chroma( id->p_encoder->format.video.i_chroma );
+
+ 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" );
id->b_transcode = VLC_FALSE;
return VLC_EGENERIC;
}
+
+ id->i_inter_pixfmt = id->ff_enc_c->pix_fmt;
+
id->b_enc_inited = VLC_TRUE;
}
buf = malloc( i_size );
avpicture_fill( (AVPicture*)id->p_ff_pic_tmp0, buf,
- id->ff_enc_c->pix_fmt,
+ id->i_inter_pixfmt,
id->ff_dec_c->width, id->ff_dec_c->height );
}
}
/* convert pix format */
- if( id->ff_dec_c->pix_fmt != id->ff_enc_c->pix_fmt )
+ if( id->ff_dec_c->pix_fmt != id->i_inter_pixfmt )
{
if( id->p_ff_pic_tmp1 == NULL )
{
int i_size;
uint8_t *buf;
id->p_ff_pic_tmp1 = avcodec_alloc_frame();
- i_size = avpicture_get_size( id->ff_enc_c->pix_fmt,
- id->ff_dec_c->width, id->ff_dec_c->height );
+ i_size = avpicture_get_size( id->i_inter_pixfmt,
+ id->ff_dec_c->width,
+ id->ff_dec_c->height );
buf = malloc( i_size );
avpicture_fill( (AVPicture*)id->p_ff_pic_tmp1, buf,
- id->ff_enc_c->pix_fmt,
+ id->i_inter_pixfmt,
id->ff_dec_c->width, id->ff_dec_c->height );
}
- img_convert( (AVPicture*)id->p_ff_pic_tmp1, id->ff_enc_c->pix_fmt,
- (AVPicture*)frame, id->ff_dec_c->pix_fmt,
+ img_convert( (AVPicture*)id->p_ff_pic_tmp1, id->i_inter_pixfmt,
+ (AVPicture*)frame, id->ff_dec_c->pix_fmt,
id->ff_dec_c->width, id->ff_dec_c->height );
frame = id->p_ff_pic_tmp1;
}
/* convert size and crop */
- if( id->ff_dec_c->width != id->ff_enc_c->width ||
- id->ff_dec_c->height != id->ff_enc_c->height ||
+ if( id->ff_dec_c->width != id->f_dst.i_width ||
+ id->ff_dec_c->height != id->f_dst.i_height ||
p_sys->i_crop_top > 0 || p_sys->i_crop_bottom > 0 ||
p_sys->i_crop_left > 0 || p_sys->i_crop_right )
{
int i_size;
uint8_t *buf;
id->p_ff_pic_tmp2 = avcodec_alloc_frame();
- i_size = avpicture_get_size( id->ff_enc_c->pix_fmt,
- id->ff_enc_c->width, id->ff_enc_c->height );
+ i_size = avpicture_get_size( id->i_inter_pixfmt,
+ id->f_dst.i_width,
+ id->f_dst.i_height );
buf = malloc( i_size );
avpicture_fill( (AVPicture*)id->p_ff_pic_tmp2, buf,
- id->ff_enc_c->pix_fmt,
- id->ff_enc_c->width, id->ff_enc_c->height );
+ id->i_inter_pixfmt,
+ id->f_dst.i_width, id->f_dst.i_height );
id->p_vresample =
- img_resample_full_init( id->ff_enc_c->width, id->ff_enc_c->height,
+ img_resample_full_init( id->f_dst.i_width,
+ id->f_dst.i_height,
id->ff_dec_c->width, id->ff_dec_c->height,
p_stream->p_sys->i_crop_top,
p_stream->p_sys->i_crop_bottom,
frame = id->p_ff_pic_tmp2;
}
- /* Set the pts of the frame being encoded */
- frame->pts = p_sys->i_output_pts;
+ /* Set the pts of the frame being encoded (segfaults with mpeg4!)*/
+ if( id->p_encoder ||
+ 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 ) */
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->f_dst.i_width, id->f_dst.i_height,
+ id->p_encoder->format.video.i_chroma );
+
+ 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);
+ p_out->i_dts = p_block->i_dts;
+ p_out->i_pts = p_block->i_pts;
+ sout_BufferChain( out, p_out );
+ block_Release( p_block );
+ }
+
+ return VLC_SUCCESS;
+ }
+
/* Let ffmpeg select the frame type */
frame->pict_type = 0;
projects / vlc / blobdiff