Skip to content

V
vlc-2-2
Commit 80248d6a authored by Gildas Bazin's avatar Gildas Bazin
Browse files
Options 

* modules/codec/ffmpeg/video.c: got rid of ffmpeg_ConvertPictureI410toI420()
   and use img_convert() from ffmpeg instead. Also added support for the
   PIX_FMT_YUV411P pixel format so we can now decode the DV Quicktime videos
   from media.xiph.org.
parent 31f6d63e
Hide whitespace changes
Inline Side-by-side
Showing with 39 additions and 128 deletions
modules/codec/ffmpeg/video.c
View file @ 80248d6a
......@@ -2,7 +2,7 @@
* video.c: video decoder using ffmpeg library
*****************************************************************************
* Copyright (C) 1999-2001 VideoLAN
* $Id: video.c,v 1.16 2003/01/08 10:41:57 fenrir Exp $
* $Id: video.c,v 1.17 2003/02/18 22:33:54 gbazin Exp $
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
* Gildas Bazin <gbazin@netcourrier.com>
......@@ -83,6 +83,7 @@ static inline uint32_t ffmpeg_PixFmtToChroma( int i_ff_chroma )
return( VLC_FOURCC('I','4','4','4') );
#if LIBAVCODEC_BUILD >= 4615
case PIX_FMT_YUV410P:
case PIX_FMT_YUV411P:
#endif
case PIX_FMT_BGR24:
default:
......@@ -96,7 +97,7 @@ static vout_thread_t *ffmpeg_CreateVout( vdec_thread_t *p_vdec,
{
vout_thread_t *p_vout;
unsigned int i_width = p_context->width;
unsigned int i_height =p_context->height;
unsigned int i_height = p_context->height;
uint32_t i_chroma = ffmpeg_PixFmtToChroma( p_context->pix_fmt );
unsigned int i_aspect;
......@@ -109,9 +110,6 @@ static vout_thread_t *ffmpeg_CreateVout( vdec_thread_t *p_vdec,
{
/* we make conversion if possible*/
i_chroma = VLC_FOURCC('I','4','2','0');
msg_Warn( p_vdec->p_fifo, "Internal chroma conversion (FIXME)");
/* It's mainly for I410 -> I420 conversion that I've made,
it's buggy and very slow */
}
#if LIBAVCODEC_BUILD >= 4640
i_aspect = VOUT_ASPECT_FACTOR * p_context->aspect_ratio;
......@@ -145,110 +143,6 @@ static vout_thread_t *ffmpeg_CreateVout( vdec_thread_t *p_vdec,
return p_vout;
}
/* FIXME FIXME FIXME this is a big shit
does someone want to rewrite this function ?
or said to me how write a better thing
FIXME FIXME FIXME
*/
#if LIBAVCODEC_BUILD >= 4641
static void ffmpeg_ConvertPictureI410toI420( picture_t *p_pic,
AVFrame *p_ff_pic,
vdec_thread_t *p_vdec )
#else
static void ffmpeg_ConvertPictureI410toI420( picture_t *p_pic,
AVPicture *p_ff_pic,
vdec_thread_t *p_vdec )
#endif
{
uint8_t *p_src, *p_dst;
uint8_t *p_plane[3];
int i_plane;
int i_stride, i_lines;
int i_height, i_width;
int i_y, i_x;
i_height = p_vdec->p_context->height;
i_width = p_vdec->p_context->width;
p_dst = p_pic->p[0].p_pixels;
p_src = p_ff_pic->data[0];
/* copy first plane */
for( i_y = 0; i_y < i_height; i_y++ )
{
p_vdec->p_fifo->p_vlc->pf_memcpy( p_dst, p_src, i_width);
p_dst += p_pic->p[0].i_pitch;
p_src += p_ff_pic->linesize[0];
}
/* process each plane in a temporary buffer */
for( i_plane = 1; i_plane < 3; i_plane++ )
{
i_stride = p_ff_pic->linesize[i_plane];
i_lines = i_height / 4;
p_dst = p_plane[i_plane] = malloc( i_lines * i_stride * 2 * 2 );
p_src = p_ff_pic->data[i_plane];
/* for each source line */
for( i_y = 0; i_y < i_lines; i_y++ )
{
for( i_x = 0; i_x < i_stride - 1; i_x++ )
{
p_dst[2 * i_x ] = p_src[i_x];
p_dst[2 * i_x + 1] = ( p_src[i_x] + p_src[i_x + 1]) / 2;
}
p_dst[2 * i_stride - 2] = p_src[i_x];
p_dst[2 * i_stride - 1] = p_src[i_x];
p_dst += 4 * i_stride; /* process the next even lines */
p_src += i_stride;
}
}
for( i_plane = 1; i_plane < 3; i_plane++ )
{
i_stride = p_ff_pic->linesize[i_plane];
i_lines = i_height / 4;
p_dst = p_plane[i_plane] + 2*i_stride;
p_src = p_plane[i_plane];
for( i_y = 0; i_y < i_lines - 1; i_y++ )
{
for( i_x = 0; i_x < 2 * i_stride ; i_x++ )
{
p_dst[i_x] = ( p_src[i_x] + p_src[i_x + 4*i_stride])/2;
}
p_dst += 4 * i_stride; /* process the next odd lines */
p_src += 4 * i_stride;
}
/* last line */
p_vdec->p_fifo->p_vlc->pf_memcpy( p_dst, p_src, 2*i_stride );
}
/* copy to p_pic, by block
if I do pixel per pixel it segfault. It's why I use
temporaries buffers */
for( i_plane = 1; i_plane < 3; i_plane++ )
{
int i_size;
p_src = p_plane[i_plane];
p_dst = p_pic->p[i_plane].p_pixels;
i_size = __MIN( 2*i_stride, p_pic->p[i_plane].i_pitch);
for( i_y = 0; i_y < __MIN(p_pic->p[i_plane].i_lines, 2 * i_lines); i_y++ )
{
p_vdec->p_fifo->p_vlc->pf_memcpy( p_dst, p_src, i_size );
p_src += 2 * i_stride;
p_dst += p_pic->p[i_plane].i_pitch;
}
free( p_plane[i_plane] );
}
}
/*****************************************************************************
*
* Functions that initialize, decode and end the decoding process
......@@ -313,21 +207,6 @@ int E_( InitThread_Video )( vdec_thread_t *p_vdec )
p_vdec->b_direct_rendering = 0;
#if LIBAVCODEC_BUILD >= 4641
if( config_GetInt( p_vdec->p_fifo, "ffmpeg-dr" ) &&
p_vdec->p_codec->capabilities & CODEC_CAP_DR1 &&
p_vdec->p_context->pix_fmt != PIX_FMT_YUV410P ) /* <- FIXME */
{
msg_Dbg( p_vdec->p_fifo, "using direct rendering" );
p_vdec->b_direct_rendering = 1;
p_vdec->p_context->flags|= CODEC_FLAG_EMU_EDGE;
p_vdec->p_context->get_buffer = ffmpeg_GetFrameBuf;
p_vdec->p_context->release_buffer = ffmpeg_ReleaseFrameBuf;
p_vdec->p_context->opaque = p_vdec;
}
#endif
#if 0
/* check if codec support truncated frames */
// if( p_vdec->p_codec->capabilities & CODEC_FLAG_TRUNCATED )
......@@ -351,6 +230,24 @@ int E_( InitThread_Video )( vdec_thread_t *p_vdec )
p_vdec->psz_namecodec );
}
#if LIBAVCODEC_BUILD >= 4641
if( config_GetInt( p_vdec->p_fifo, "ffmpeg-dr" ) &&
p_vdec->p_codec->capabilities & CODEC_CAP_DR1 &&
ffmpeg_PixFmtToChroma( p_vdec->p_context->pix_fmt ) )
{
/* FIXME: some codecs set pix_fmt only after a frame
* has been decoded. */
msg_Dbg( p_vdec->p_fifo, "using direct rendering" );
p_vdec->b_direct_rendering = 1;
p_vdec->p_context->flags|= CODEC_FLAG_EMU_EDGE;
p_vdec->p_context->get_buffer = ffmpeg_GetFrameBuf;
p_vdec->p_context->release_buffer = ffmpeg_ReleaseFrameBuf;
p_vdec->p_context->opaque = p_vdec;
}
#endif
/* ***** init this codec with special data ***** */
if( p_vdec->p_format &&
p_vdec->p_format->biSize > sizeof(BITMAPINFOHEADER) )
......@@ -663,7 +560,8 @@ usenextdata:
msleep( VOUT_OUTMEM_SLEEP );
}
/* fill p_picture_t from AVVideoFrame, do I410->I420 if needed */
/* fill p_picture_t from AVVideoFrame and do chroma conversion
* if needed */
ffmpeg_CopyPicture( p_pic, p_vdec->p_ff_pic, p_vdec );
}
else
......@@ -785,12 +683,27 @@ static void ffmpeg_CopyPicture( picture_t *p_pic,
/* we need to convert to I420 */
switch( p_vdec->p_context->pix_fmt )
{
AVPicture dest_pic;
int i;
#if LIBAVCODEC_BUILD >= 4615
case( PIX_FMT_YUV410P ):
ffmpeg_ConvertPictureI410toI420( p_pic, p_ff_pic, p_vdec );
case( PIX_FMT_YUV411P ):
for( i = 0; i < p_pic->i_planes; i++ )
{
dest_pic.data[i] = p_pic->p[i].p_pixels;
dest_pic.linesize[i] = p_pic->p[i].i_pitch;
}
img_convert( &dest_pic, PIX_FMT_YUV420P,
(AVPicture *)p_ff_pic,
p_vdec->p_context->pix_fmt,
p_vdec->p_context->width,
p_vdec->p_context->height );
break;
#endif
default:
msg_Err( p_vdec->p_fifo, "don't know how to convert chroma %i",
p_vdec->p_context->pix_fmt );
p_vdec->p_fifo->b_error = 1;
break;
}
......@@ -897,6 +810,4 @@ static void ffmpeg_ReleaseFrameBuf( struct AVCodecContext *p_context,
vout_UnlinkPicture( p_vdec->p_vout, p_pic );
}
#endif
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment