static int lavc_va_GetFrame(struct AVCodecContext *ctx, AVFrame *frame,
int flags)
{
decoder_t *dec = ctx->opaque;
decoder_sys_t *sys = dec->p_sys;
vlc_va_t *va = sys->p_va;
if (vlc_va_Setup(va, &ctx->hwaccel_context, &dec->fmt_out.video.i_chroma,
ctx->coded_width, ctx->coded_height))
{
msg_Err(dec, "hardware acceleration setup failed");
return -1;
}
if (vlc_va_Get(va, &frame->opaque, &frame->data[0]))
{
msg_Err(dec, "hardware acceleration picture allocation failed");
return -1;
}
/* data[0] must be non-NULL for libavcodec internal checks.
* data[3] actually contains the format-specific surface handle. */
frame->data[3] = frame->data[0];
frame->buf[0] = av_buffer_create(frame->data[0], 0, va->release,
frame->opaque, 0);
if (unlikely(frame->buf[0] == NULL))
{
vlc_va_Release(va, frame->opaque, frame->data[0]);
return -1;
}
assert(frame->data[0] != NULL);
(void) flags;
return 0;
}
static int lavc_va_GetFrame(struct AVCodecContext *ctx, AVFrame *frame,
picture_t *pic)
{
decoder_t *dec = ctx->opaque;
vlc_va_t *va = dec->p_sys->p_va;
if (vlc_va_Get(va, pic, &frame->data[0]))
{
msg_Err(dec, "hardware acceleration picture allocation failed");
picture_Release(pic);
return -1;
}
/* data[0] must be non-NULL for libavcodec internal checks.
* data[3] actually contains the format-specific surface handle. */
frame->data[3] = frame->data[0];
void (*release)(void *, uint8_t *) = va->release;
if (va->release == NULL)
release = lavc_ReleaseFrame;
frame->buf[0] = av_buffer_create(frame->data[0], 0, release, pic, 0);
if (unlikely(frame->buf[0] == NULL))
{
release(pic, frame->data[0]);
return -1;
}
frame->opaque = pic;
assert(frame->data[0] != NULL);
return 0;
}
static int ffmpeg_va_GetFrameBuf( struct AVCodecContext *p_context, AVFrame *p_ff_pic )
{
decoder_t *p_dec = (decoder_t *)p_context->opaque;
decoder_sys_t *p_sys = p_dec->p_sys;
vlc_va_t *p_va = p_sys->p_va;
/* hwaccel_context is not present in old ffmpeg version */
if( vlc_va_Setup( p_va,
&p_context->hwaccel_context, &p_dec->fmt_out.video.i_chroma,
p_context->coded_width, p_context->coded_height ) )
{
msg_Err( p_dec, "vlc_va_Setup failed" );
return -1;
}
if( vlc_va_Get( p_va, &p_ff_pic->opaque, &p_ff_pic->data[0] ) )
{
msg_Err( p_dec, "vlc_va_Get failed" );
return -1;
}
p_ff_pic->data[3] = p_ff_pic->data[0];
p_ff_pic->type = FF_BUFFER_TYPE_USER;
return 0;
}
static int ffmpeg_GetFrameBuf( struct AVCodecContext *p_context,
AVFrame *p_ff_pic )
{
decoder_t *p_dec = (decoder_t *)p_context->opaque;
decoder_sys_t *p_sys = p_dec->p_sys;
picture_t *p_pic;
/* Set picture PTS */
ffmpeg_SetFrameBufferPts( p_dec, p_ff_pic );
/* */
p_ff_pic->opaque = NULL;
if( p_sys->p_va )
{
#ifdef HAVE_AVCODEC_VA
/* hwaccel_context is not present in old fffmpeg version */
if( vlc_va_Setup( p_sys->p_va,
&p_sys->p_context->hwaccel_context, &p_dec->fmt_out.video.i_chroma,
p_sys->p_context->width, p_sys->p_context->height ) )
{
msg_Err( p_dec, "vlc_va_Setup failed" );
return -1;
}
#else
assert(0);
#endif
/* */
p_ff_pic->type = FF_BUFFER_TYPE_USER;
/* FIXME what is that, should give good value */
p_ff_pic->age = 256*256*256*64; // FIXME FIXME from ffmpeg
if( vlc_va_Get( p_sys->p_va, p_ff_pic ) )
{
msg_Err( p_dec, "VaGrabSurface failed" );
return -1;
}
return 0;
}
else if( !p_sys->b_direct_rendering )
{
/* Not much to do in indirect rendering mode. */
return avcodec_default_get_buffer( p_context, p_ff_pic );
}
/* Some codecs set pix_fmt only after the 1st frame has been decoded,
* so we need to check for direct rendering again. */
int i_width = p_sys->p_context->width;
int i_height = p_sys->p_context->height;
avcodec_align_dimensions( p_sys->p_context, &i_width, &i_height );
if( GetVlcChroma( &p_dec->fmt_out.video, p_context->pix_fmt ) != VLC_SUCCESS ||
p_context->pix_fmt == PIX_FMT_PAL8 )
goto no_dr;
p_dec->fmt_out.i_codec = p_dec->fmt_out.video.i_chroma;
/* Get a new picture */
p_pic = ffmpeg_NewPictBuf( p_dec, p_sys->p_context );
if( !p_pic )
goto no_dr;
bool b_compatible = true;
if( p_pic->p[0].i_pitch / p_pic->p[0].i_pixel_pitch < i_width ||
p_pic->p[0].i_lines < i_height )
b_compatible = false;
for( int i = 0; i < p_pic->i_planes && b_compatible; i++ )
{
unsigned i_align;
switch( p_sys->i_codec_id )
{
case CODEC_ID_SVQ1:
case CODEC_ID_VP5:
case CODEC_ID_VP6:
case CODEC_ID_VP6F:
case CODEC_ID_VP6A:
i_align = 16;
break;
default:
i_align = i == 0 ? 16 : 8;
break;
}
if( p_pic->p[i].i_pitch % i_align )
b_compatible = false;
if( (intptr_t)p_pic->p[i].p_pixels % i_align )
b_compatible = false;
}
if( p_context->pix_fmt == PIX_FMT_YUV422P && b_compatible )
{
if( 2 * p_pic->p[1].i_pitch != p_pic->p[0].i_pitch ||
2 * p_pic->p[2].i_pitch != p_pic->p[0].i_pitch )
b_compatible = false;
}
if( !b_compatible )
{
decoder_DeletePicture( p_dec, p_pic );
goto no_dr;
}
if( p_sys->i_direct_rendering_used != 1 )
{
msg_Dbg( p_dec, "using direct rendering" );
p_sys->i_direct_rendering_used = 1;
}
p_sys->p_context->draw_horiz_band = NULL;
p_ff_pic->opaque = (void*)p_pic;
p_ff_pic->type = FF_BUFFER_TYPE_USER;
p_ff_pic->data[0] = p_pic->p[0].p_pixels;
p_ff_pic->data[1] = p_pic->p[1].p_pixels;
p_ff_pic->data[2] = p_pic->p[2].p_pixels;
p_ff_pic->data[3] = NULL; /* alpha channel but I'm not sure */
p_ff_pic->linesize[0] = p_pic->p[0].i_pitch;
p_ff_pic->linesize[1] = p_pic->p[1].i_pitch;
p_ff_pic->linesize[2] = p_pic->p[2].i_pitch;
p_ff_pic->linesize[3] = 0;
decoder_LinkPicture( p_dec, p_pic );
/* FIXME what is that, should give good value */
p_ff_pic->age = 256*256*256*64; // FIXME FIXME from ffmpeg
return 0;
no_dr:
if( p_sys->i_direct_rendering_used != 0 )
{
msg_Warn( p_dec, "disabling direct rendering" );
p_sys->i_direct_rendering_used = 0;
}
return avcodec_default_get_buffer( p_context, p_ff_pic );
}