/*****************************************************************************
* video.c: video decoder using the ffmpeg library
*****************************************************************************
- * Copyright (C) 1999-2001 VideoLAN
+ * Copyright (C) 1999-2001 the VideoLAN team
* $Id$
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
*****************************************************************************/
#include <vlc/vlc.h>
#include <vlc/decoder.h>
+#include <vlc/input.h> /* hmmm, just for INPUT_RATE_DEFAULT */
/* ffmpeg header */
#ifdef HAVE_FFMPEG_AVCODEC_H
vlc_bool_t b_has_b_frames;
+ /* Hack to force display of still pictures */
+ vlc_bool_t b_first_frame;
+
int i_buffer_orig, i_buffer;
char *p_buffer_orig, *p_buffer;
/*****************************************************************************
* Local prototypes
*****************************************************************************/
+static void ffmpeg_InitCodec ( decoder_t * );
static void ffmpeg_CopyPicture ( decoder_t *, picture_t *, AVFrame * );
static int ffmpeg_GetFrameBuf ( struct AVCodecContext *, AVFrame * );
static void ffmpeg_ReleaseFrameBuf( struct AVCodecContext *, AVFrame * );
switch( i_ff_chroma )
{
case PIX_FMT_YUV420P:
+ case PIX_FMT_YUVJ420P: /* Hacky but better then chroma conversion */
return VLC_FOURCC('I','4','2','0');
case PIX_FMT_YUV422P:
+ case PIX_FMT_YUVJ422P: /* Hacky but better then chroma conversion */
return VLC_FOURCC('I','4','2','2');
case PIX_FMT_YUV444P:
+ case PIX_FMT_YUVJ444P: /* Hacky but better then chroma conversion */
return VLC_FOURCC('I','4','4','4');
case PIX_FMT_YUV422:
p_dec->fmt_out.video.i_aspect =
VOUT_ASPECT_FACTOR * ( av_q2d(p_context->sample_aspect_ratio) *
p_context->width / p_context->height );
+ p_dec->fmt_out.video.i_sar_num = p_context->sample_aspect_ratio.num;
+ p_dec->fmt_out.video.i_sar_den = p_context->sample_aspect_ratio.den;
#else
p_dec->fmt_out.video.i_aspect =
VOUT_ASPECT_FACTOR * p_context->aspect_ratio;
}
}
+#if LIBAVCODEC_BUILD >= 4754
+ if( p_context->time_base.num > 0 && p_context->time_base.den > 0 )
+ {
+ p_dec->fmt_out.video.i_frame_rate = p_context->time_base.den;
+ p_dec->fmt_out.video.i_frame_rate_base = p_context->time_base.num;
+ }
+#else
+ if( p_context->frame_rate > 0 && p_context->frame_rate_base > 0 )
+ {
+ p_dec->fmt_out.video.i_frame_rate = p_context->frame_rate;
+ p_dec->fmt_out.video.i_frame_rate_base = p_context->frame_rate_base;
+ }
+#endif
+
p_pic = p_dec->pf_vout_buffer_new( p_dec );
#ifdef LIBAVCODEC_PP
p_sys->p_ff_pic = avcodec_alloc_frame();
/* ***** Fill p_context with init values ***** */
+ /* FIXME: remove when ffmpeg deals properly with avc1 */
+ if( p_dec->fmt_in.i_codec != VLC_FOURCC('a','v','c','1') )
+ /* End FIXME */
p_sys->p_context->codec_tag = ffmpeg_CodecTag( p_dec->fmt_in.i_codec );
p_sys->p_context->width = p_dec->fmt_in.video.i_width;
p_sys->p_context->height = p_dec->fmt_in.video.i_height;
if( val.i_int ) p_sys->p_context->debug_mv = val.i_int;
#endif
+ var_Create( p_dec, "ffmpeg-lowres", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
+ var_Get( p_dec, "ffmpeg-lowres", &val );
+#if LIBAVCODEC_BUILD >= 4723
+ if( val.i_int > 0 && val.i_int <= 2 ) p_sys->p_context->lowres = val.i_int;
+#endif
+
/* ***** ffmpeg frame skipping ***** */
var_Create( p_dec, "ffmpeg-hurry-up", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
var_Get( p_dec, "ffmpeg-hurry-up", &val );
p_sys->p_context->opaque = p_dec;
/* ***** init this codec with special data ***** */
- if( p_dec->fmt_in.i_extra )
- {
- int i_size = p_dec->fmt_in.i_extra;
-
- if( p_sys->i_codec_id == CODEC_ID_SVQ3 )
- {
- uint8_t *p;
-
- p_sys->p_context->extradata_size = i_size + 12;
- p = p_sys->p_context->extradata =
- malloc( p_sys->p_context->extradata_size );
-
- memcpy( &p[0], "SVQ3", 4 );
- memset( &p[4], 0, 8 );
- memcpy( &p[12], p_dec->fmt_in.p_extra, i_size );
-
- /* Now remove all atoms before the SMI one */
- if( p_sys->p_context->extradata_size > 0x5a &&
- strncmp( &p[0x56], "SMI ", 4 ) )
- {
- uint8_t *psz = &p[0x52];
-
- while( psz < &p[p_sys->p_context->extradata_size - 8] )
- {
- int i_size = GetDWBE( psz );
- if( i_size <= 1 )
- {
- /* FIXME handle 1 as long size */
- break;
- }
- if( !strncmp( &psz[4], "SMI ", 4 ) )
- {
- memmove( &p[0x52], psz,
- &p[p_sys->p_context->extradata_size] - psz );
- break;
- }
-
- psz += i_size;
- }
- }
- }
- else if( p_dec->fmt_in.i_codec == VLC_FOURCC( 'R', 'V', '1', '0' ) ||
- p_dec->fmt_in.i_codec == VLC_FOURCC( 'R', 'V', '1', '3' ) ||
- p_dec->fmt_in.i_codec == VLC_FOURCC( 'R', 'V', '2', '0' ) )
- {
- if( p_dec->fmt_in.i_extra == 8 )
- {
- p_sys->p_context->extradata_size = 8;
- p_sys->p_context->extradata = malloc( 8 );
-
- memcpy( p_sys->p_context->extradata,
- p_dec->fmt_in.p_extra,
- p_dec->fmt_in.i_extra );
- p_sys->p_context->sub_id= ((uint32_t*)p_dec->fmt_in.p_extra)[1];
-
- msg_Warn( p_dec, "using extra data for RV codec sub_id=%08x",
- p_sys->p_context->sub_id );
- }
- }
- else if( p_dec->fmt_in.i_codec != VLC_FOURCC( 'a', 'v', 'c', '1' ) )
- {
- p_sys->p_context->extradata_size = i_size;
- p_sys->p_context->extradata =
- malloc( i_size + FF_INPUT_BUFFER_PADDING_SIZE );
- memcpy( p_sys->p_context->extradata,
- p_dec->fmt_in.p_extra, i_size );
- memset( &((uint8_t*)p_sys->p_context->extradata)[i_size],
- 0, FF_INPUT_BUFFER_PADDING_SIZE );
- }
- }
+ ffmpeg_InitCodec( p_dec );
/* ***** misc init ***** */
p_sys->input_pts = p_sys->input_dts = 0;
p_sys->i_pts = 0;
p_sys->b_has_b_frames = VLC_FALSE;
+ p_sys->b_first_frame = VLC_TRUE;
p_sys->i_late_frames = 0;
p_sys->i_buffer = 0;
p_sys->i_buffer_orig = 1;
- p_sys->p_buffer_orig = p_sys->p_buffer = malloc( p_sys->i_buffer );
+ p_sys->p_buffer_orig = p_sys->p_buffer = malloc( p_sys->i_buffer_orig );
/* Set output properties */
p_dec->fmt_out.i_cat = VIDEO_ES;
{
vlc_mutex_unlock( lockval.p_address );
msg_Err( p_dec, "cannot open codec (%s)", p_sys->psz_namecodec );
+ free( p_sys );
return VLC_EGENERIC;
}
vlc_mutex_unlock( lockval.p_address );
{
decoder_sys_t *p_sys = p_dec->p_sys;
int b_drawpicture;
+ int b_null_size = VLC_FALSE;
block_t *p_block;
if( !pp_block || !*pp_block ) return NULL;
+ if( !p_sys->p_context->extradata_size && p_dec->fmt_in.i_extra )
+ ffmpeg_InitCodec( p_dec );
+
p_block = *pp_block;
- if( p_block->i_flags & BLOCK_FLAG_DISCONTINUITY )
+ if( p_block->i_flags & (BLOCK_FLAG_DISCONTINUITY|BLOCK_FLAG_CORRUPTED) )
{
p_sys->i_buffer = 0;
p_sys->i_pts = 0; /* To make sure we recover properly */
return NULL;
}
- if( p_sys->i_late_frames > 0 &&
+ if( p_block->i_flags & BLOCK_FLAG_PREROLL )
+ {
+ /* Do not care about late frames when prerolling
+ * TODO avoid decoding of non reference frame
+ * (ie all B except for H264 where it depends only on nal_ref_idc) */
+ p_sys->i_late_frames = 0;
+ }
+
+ if( !p_dec->b_pace_control && p_sys->i_late_frames > 0 &&
mdate() - p_sys->i_late_frames_start > I64C(5000000) )
{
if( p_sys->i_pts )
/* TODO implement it in a better way */
/* A good idea could be to decode all I pictures and see for the other */
- if( p_sys->b_hurry_up && p_sys->i_late_frames > 4 )
+ if( !p_dec->b_pace_control &&
+ p_sys->b_hurry_up && p_sys->i_late_frames > 4 )
{
b_drawpicture = 0;
if( p_sys->i_late_frames < 8 )
}
else
{
- b_drawpicture = 1;
- p_sys->p_context->hurry_up = 0;
+ if (!(p_block->i_flags & BLOCK_FLAG_PREROLL))
+ {
+ b_drawpicture = 1;
+ p_sys->p_context->hurry_up = 0;
+ }
+ else
+ {
+ b_drawpicture = 0;
+ p_sys->p_context->hurry_up = 1;
+ }
}
if( p_sys->p_context->width <= 0 || p_sys->p_context->height <= 0 )
{
p_sys->p_context->hurry_up = 5;
+ b_null_size = VLC_TRUE;
}
/*
i_used = avcodec_decode_video( p_sys->p_context, p_sys->p_ff_pic,
&b_gotpicture,
p_sys->p_buffer, p_sys->i_buffer );
+ if( b_null_size && p_sys->p_context->width > 0 &&
+ p_sys->p_context->height > 0 )
+ {
+ /* Reparse it to not drop the I frame */
+ b_null_size = VLC_FALSE;
+ p_sys->p_context->hurry_up = 0;
+ i_used = avcodec_decode_video( p_sys->p_context, p_sys->p_ff_pic,
+ &b_gotpicture,
+ p_sys->p_buffer, p_sys->i_buffer );
+ }
+
if( i_used < 0 )
{
msg_Warn( p_dec, "cannot decode one frame (%d bytes)",
continue;
}
- /* Update frame late count*/
- if( p_sys->i_pts && p_sys->i_pts <= mdate() )
+ /* Update frame late count (except when doing preroll) */
+ if( p_sys->i_pts && p_sys->i_pts <= mdate() &&
+ !(p_block->i_flags & BLOCK_FLAG_PREROLL) )
{
p_sys->i_late_frames++;
if( p_sys->i_late_frames == 1 )
/* Set the PTS */
if( p_sys->p_ff_pic->pts ) p_sys->i_pts = p_sys->p_ff_pic->pts;
- /* Sanity check (seems to be needed for some streams ) */
+ /* Sanity check (seems to be needed for some streams) */
if( p_sys->p_ff_pic->pict_type == FF_B_TYPE )
{
p_sys->b_has_b_frames = VLC_TRUE;
}
+ if( !p_dec->fmt_in.video.i_aspect )
+ {
+ /* Fetch again the aspect ratio in case it changed */
+#if LIBAVCODEC_BUILD >= 4687
+ p_dec->fmt_out.video.i_aspect =
+ VOUT_ASPECT_FACTOR
+ * ( av_q2d(p_sys->p_context->sample_aspect_ratio)
+ * p_sys->p_context->width / p_sys->p_context->height );
+ p_dec->fmt_out.video.i_sar_num
+ = p_sys->p_context->sample_aspect_ratio.num;
+ p_dec->fmt_out.video.i_sar_den
+ = p_sys->p_context->sample_aspect_ratio.den;
+#else
+ p_dec->fmt_out.video.i_aspect =
+ VOUT_ASPECT_FACTOR * p_sys->p_context->aspect_ratio;
+#endif
+ if( p_dec->fmt_out.video.i_aspect == 0 )
+ {
+ p_dec->fmt_out.video.i_aspect = VOUT_ASPECT_FACTOR
+ * p_sys->p_context->width / p_sys->p_context->height;
+ }
+ }
+
/* Send decoded frame to vout */
if( p_sys->i_pts )
{
p_pic->date = p_sys->i_pts;
/* interpolate the next PTS */
+#if LIBAVCODEC_BUILD >= 4754
+ if( p_dec->fmt_in.video.i_frame_rate > 0 &&
+ p_dec->fmt_in.video.i_frame_rate_base > 0 )
+ {
+ p_sys->i_pts += I64C(1000000) *
+ (2 + p_sys->p_ff_pic->repeat_pict) *
+ p_dec->fmt_in.video.i_frame_rate_base *
+ p_block->i_rate / INPUT_RATE_DEFAULT /
+ (2 * p_dec->fmt_in.video.i_frame_rate);
+ }
+ else if( p_sys->p_context->time_base.den > 0 )
+ {
+ p_sys->i_pts += I64C(1000000) *
+ (2 + p_sys->p_ff_pic->repeat_pict) *
+ p_sys->p_context->time_base.num *
+ p_block->i_rate / INPUT_RATE_DEFAULT /
+ (2 * p_sys->p_context->time_base.den);
+ }
+#else
if( p_sys->p_context->frame_rate > 0 )
{
p_sys->i_pts += I64C(1000000) *
(2 + p_sys->p_ff_pic->repeat_pict) *
- p_sys->p_context->frame_rate_base /
+ p_sys->p_context->frame_rate_base *
+ p_block->i_rate / INPUT_RATE_DEFAULT /
(2 * p_sys->p_context->frame_rate);
}
+#endif
+
+ if( p_sys->b_first_frame )
+ {
+ /* Hack to force display of still pictures */
+ p_sys->b_first_frame = VLC_FALSE;
+ p_pic->b_force = VLC_TRUE;
+ }
+
+ p_pic->i_nb_fields = 2 + p_sys->p_ff_pic->repeat_pict;
+#if LIBAVCODEC_BUILD >= 4685
+ p_pic->b_progressive = !p_sys->p_ff_pic->interlaced_frame;
+ p_pic->b_top_field_first = p_sys->p_ff_pic->top_field_first;
+#endif
+
return p_pic;
}
else
/*****************************************************************************
* EndVideo: decoder destruction
*****************************************************************************
- * This function is called when the thread ends after a sucessful
+ * This function is called when the thread ends after a successful
* initialization.
*****************************************************************************/
void E_(EndVideoDec)( decoder_t *p_dec )
{
decoder_sys_t *p_sys = p_dec->p_sys;
- if( p_sys->p_ff_pic ) free( p_sys->p_ff_pic );
+ if( p_sys->p_ff_pic ) av_free( p_sys->p_ff_pic );
#ifdef LIBAVCODEC_PP
E_(ClosePostproc)( p_dec, p_sys->p_pp );
free( p_sys->p_buffer_orig );
}
+/*****************************************************************************
+ * ffmpeg_InitCodec: setup codec extra initialization data for ffmpeg
+ *****************************************************************************/
+static void ffmpeg_InitCodec( decoder_t *p_dec )
+{
+ decoder_sys_t *p_sys = p_dec->p_sys;
+ int i_size = p_dec->fmt_in.i_extra;
+
+ if( !i_size ) return;
+
+ if( p_sys->i_codec_id == CODEC_ID_SVQ3 )
+ {
+ uint8_t *p;
+
+ p_sys->p_context->extradata_size = i_size + 12;
+ p = p_sys->p_context->extradata =
+ malloc( p_sys->p_context->extradata_size );
+
+ memcpy( &p[0], "SVQ3", 4 );
+ memset( &p[4], 0, 8 );
+ memcpy( &p[12], p_dec->fmt_in.p_extra, i_size );
+
+ /* Now remove all atoms before the SMI one */
+ if( p_sys->p_context->extradata_size > 0x5a &&
+ strncmp( &p[0x56], "SMI ", 4 ) )
+ {
+ uint8_t *psz = &p[0x52];
+
+ while( psz < &p[p_sys->p_context->extradata_size - 8] )
+ {
+ int i_size = GetDWBE( psz );
+ if( i_size <= 1 )
+ {
+ /* FIXME handle 1 as long size */
+ break;
+ }
+ if( !strncmp( &psz[4], "SMI ", 4 ) )
+ {
+ memmove( &p[0x52], psz,
+ &p[p_sys->p_context->extradata_size] - psz );
+ break;
+ }
+
+ psz += i_size;
+ }
+ }
+ }
+ else if( p_dec->fmt_in.i_codec == VLC_FOURCC( 'R', 'V', '1', '0' ) ||
+ p_dec->fmt_in.i_codec == VLC_FOURCC( 'R', 'V', '1', '3' ) ||
+ p_dec->fmt_in.i_codec == VLC_FOURCC( 'R', 'V', '2', '0' ) )
+ {
+ if( p_dec->fmt_in.i_extra == 8 )
+ {
+ p_sys->p_context->extradata_size = 8;
+ p_sys->p_context->extradata = malloc( 8 );
+
+ memcpy( p_sys->p_context->extradata,
+ p_dec->fmt_in.p_extra, p_dec->fmt_in.i_extra );
+ p_sys->p_context->sub_id= ((uint32_t*)p_dec->fmt_in.p_extra)[1];
+
+ msg_Warn( p_dec, "using extra data for RV codec sub_id=%08x",
+ p_sys->p_context->sub_id );
+ }
+ }
+ else
+ {
+ p_sys->p_context->extradata_size = i_size;
+ p_sys->p_context->extradata =
+ malloc( i_size + FF_INPUT_BUFFER_PADDING_SIZE );
+ memcpy( p_sys->p_context->extradata,
+ p_dec->fmt_in.p_extra, i_size );
+ memset( &((uint8_t*)p_sys->p_context->extradata)[i_size],
+ 0, FF_INPUT_BUFFER_PADDING_SIZE );
+ }
+}
+
/*****************************************************************************
* ffmpeg_CopyPicture: copy a picture from ffmpeg internal buffers to a
* picture_t structure (when not in direct rendering mode).
i_dst_stride = p_pic->p[i_plane].i_pitch;
i_size = __MIN( i_src_stride, i_dst_stride );
- for( i_line = 0; i_line < p_pic->p[i_plane].i_lines; i_line++ )
+ for( i_line = 0; i_line < p_pic->p[i_plane].i_visible_lines;
+ i_line++ )
{
p_dec->p_vlc->pf_memcpy( p_dst, p_src, i_size );
p_src += i_src_stride;
{
case PIX_FMT_YUV410P:
case PIX_FMT_YUV411P:
+ case PIX_FMT_BGR24:
case PIX_FMT_PAL8:
for( i = 0; i < p_pic->i_planes; i++ )
{
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