/*****************************************************************************
* Open: probe the packetizer and return score
* When opening after demux, the packetizer is only loaded AFTER the decoder
* That means that what you set in fmt_out is ignored by the decoder in this special case
*****************************************************************************/
static int Open( vlc_object_t *p_this )
{
decoder_t *p_dec = (decoder_t*)p_this;
decoder_sys_t *p_sys;
int i;
const bool b_avc = (p_dec->fmt_in.i_original_fourcc == VLC_FOURCC( 'a', 'v', 'c', '1' ));
if( p_dec->fmt_in.i_codec != VLC_CODEC_H264 )
return VLC_EGENERIC;
if( b_avc && p_dec->fmt_in.i_extra < 7 )
return VLC_EGENERIC;
/* Allocate the memory needed to store the decoder's structure */
if( ( p_dec->p_sys = p_sys = malloc( sizeof(decoder_sys_t) ) ) == NULL )
{
return VLC_ENOMEM;
}
p_sys->p_ccs = cc_storage_new();
if( unlikely(!p_sys->p_ccs) )
{
free( p_dec->p_sys );
return VLC_ENOMEM;
}
packetizer_Init( &p_sys->packetizer,
p_h264_startcode, sizeof(p_h264_startcode), startcode_FindAnnexB,
p_h264_startcode, 1, 5,
PacketizeReset, PacketizeParse, PacketizeValidate, p_dec );
p_sys->b_slice = false;
p_sys->p_frame = NULL;
p_sys->pp_frame_last = &p_sys->p_frame;
p_sys->b_frame_sps = false;
p_sys->b_frame_pps = false;
p_sys->b_header= false;
p_sys->b_sps = false;
p_sys->b_pps = false;
for( i = 0; i <= H264_SPS_ID_MAX; i++ )
p_sys->pp_sps[i] = NULL;
for( i = 0; i <= H264_PPS_ID_MAX; i++ )
p_sys->pp_pps[i] = NULL;
p_sys->i_recovery_frames = -1;
p_sys->slice.i_nal_type = -1;
p_sys->slice.i_nal_ref_idc = -1;
p_sys->slice.i_idr_pic_id = -1;
p_sys->slice.i_frame_num = -1;
p_sys->slice.i_frame_type = 0;
p_sys->slice.i_pic_parameter_set_id = -1;
p_sys->slice.i_field_pic_flag = 0;
p_sys->slice.i_bottom_field_flag = -1;
p_sys->slice.i_pic_order_cnt_lsb = -1;
p_sys->slice.i_delta_pic_order_cnt_bottom = -1;
p_sys->b_timing_info_present_flag = false;
p_sys->b_pic_struct_present_flag = false;
p_sys->b_cpb_dpb_delays_present_flag = false;
p_sys->i_cpb_removal_delay_length_minus1 = 0;
p_sys->i_dpb_output_delay_length_minus1 = 0;
p_sys->b_even_frame = false;
p_sys->i_frame_dts = VLC_TS_INVALID;
p_sys->i_frame_pts = VLC_TS_INVALID;
p_sys->i_prev_dts = VLC_TS_INVALID;
p_sys->i_prev_pts = VLC_TS_INVALID;
p_sys->i_dpb_output_delay = 0;
/* Setup properties */
es_format_Copy( &p_dec->fmt_out, &p_dec->fmt_in );
p_dec->fmt_out.i_codec = VLC_CODEC_H264;
p_dec->fmt_out.b_packetized = true;
if( b_avc )
{
/* This type of stream is produced by mp4 and matroska
* when we want to store it in another streamformat, you need to convert
* The fmt_in.p_extra should ALWAYS contain the avcC
* The fmt_out.p_extra should contain all the SPS and PPS with 4 byte startcodes */
if( h264_isavcC( p_dec->fmt_in.p_extra, p_dec->fmt_in.i_extra ) )
{
free( p_dec->fmt_out.p_extra );
size_t i_size;
p_dec->fmt_out.p_extra = h264_avcC_to_AnnexB_NAL( p_dec->fmt_in.p_extra,
p_dec->fmt_in.i_extra,
&i_size,
&p_sys->i_avcC_length_size );
p_dec->fmt_out.i_extra = i_size;
p_sys->b_header = !!p_dec->fmt_out.i_extra;
if(!p_dec->fmt_out.p_extra)
{
msg_Err( p_dec, "Invalid AVC extradata");
Close( p_this );
return VLC_EGENERIC;
}
}
else
{
msg_Err( p_dec, "Invalid or missing AVC extradata");
Close( p_this );
return VLC_EGENERIC;
}
/* Set callback */
p_dec->pf_packetize = PacketizeAVC1;
}
else
{
/* This type of stream contains data with 3 of 4 byte startcodes
* The fmt_in.p_extra MAY contain SPS/PPS with 4 byte startcodes
* The fmt_out.p_extra should be the same */
/* Set callback */
p_dec->pf_packetize = Packetize;
}
/* */
if( p_dec->fmt_out.i_extra > 0 )
{
packetizer_Header( &p_sys->packetizer,
p_dec->fmt_out.p_extra, p_dec->fmt_out.i_extra );
}
if( b_avc )
{
if( !p_sys->b_sps || !p_sys->b_pps )
{
msg_Err( p_dec, "Invalid or missing SPS %d or PPS %d in AVC extradata",
p_sys->b_sps, p_sys->b_pps );
Close( p_this );
return VLC_EGENERIC;
}
msg_Dbg( p_dec, "Packetizer fed with AVC, nal length size=%d",
p_sys->i_avcC_length_size );
}
/* CC are the same for H264/AVC in T35 sections (ETSI TS 101 154) */
p_dec->pf_get_cc = GetCc;
p_dec->pf_flush = PacketizeFlush;
return VLC_SUCCESS;
}
static int InitializeMFT(decoder_t *p_dec)
{
decoder_sys_t *p_sys = p_dec->p_sys;
HRESULT hr;
IMFAttributes *attributes = NULL;
hr = IMFTransform_GetAttributes(p_sys->mft, &attributes);
if (hr != E_NOTIMPL && FAILED(hr))
goto error;
if (SUCCEEDED(hr))
{
UINT32 is_async = false;
hr = IMFAttributes_GetUINT32(attributes, &MF_TRANSFORM_ASYNC, &is_async);
if (hr != MF_E_ATTRIBUTENOTFOUND && FAILED(hr))
goto error;
p_sys->is_async = is_async;
if (p_sys->is_async)
{
hr = IMFAttributes_SetUINT32(attributes, &MF_TRANSFORM_ASYNC_UNLOCK, true);
if (FAILED(hr))
goto error;
hr = IMFTransform_QueryInterface(p_sys->mft, &IID_IMFMediaEventGenerator, (void**)&p_sys->event_generator);
if (FAILED(hr))
goto error;
}
}
DWORD input_streams_count;
DWORD output_streams_count;
hr = IMFTransform_GetStreamCount(p_sys->mft, &input_streams_count, &output_streams_count);
if (FAILED(hr))
goto error;
if (input_streams_count != 1 || output_streams_count != 1)
{
msg_Err(p_dec, "MFT decoder should have 1 input stream and 1 output stream.");
goto error;
}
hr = IMFTransform_GetStreamIDs(p_sys->mft, 1, &p_sys->input_stream_id, 1, &p_sys->output_stream_id);
if (hr == E_NOTIMPL)
{
/*
* This is not an error, it happens if:
* - there is a fixed number of streams.
* AND
* - streams are numbered consecutively from 0 to N-1.
*/
p_sys->input_stream_id = 0;
p_sys->output_stream_id = 0;
}
else if (FAILED(hr))
goto error;
if (SetInputType(p_dec, p_sys->input_stream_id, &p_sys->input_type))
goto error;
if (SetOutputType(p_dec, p_sys->output_stream_id, &p_sys->output_type))
goto error;
/*
* The input type was not set by the previous call to
* SetInputType, try again after setting the output type.
*/
if (!p_sys->input_type)
if (SetInputType(p_dec, p_sys->input_stream_id, &p_sys->input_type) || !p_sys->input_type)
goto error;
/* This call can be a no-op for some MFT decoders, but it can potentially reduce starting time. */
hr = IMFTransform_ProcessMessage(p_sys->mft, MFT_MESSAGE_NOTIFY_BEGIN_STREAMING, (ULONG_PTR)0);
if (FAILED(hr))
goto error;
/* This event is required for asynchronous MFTs, optional otherwise. */
hr = IMFTransform_ProcessMessage(p_sys->mft, MFT_MESSAGE_NOTIFY_START_OF_STREAM, (ULONG_PTR)0);
if (FAILED(hr))
goto error;
if (p_dec->fmt_in.i_codec == VLC_CODEC_H264)
{
/* It's not an error if the following call fails. */
IMFAttributes_SetUINT32(attributes, &CODECAPI_AVLowLatencyMode, true);
if (p_dec->fmt_in.i_extra)
{
if (h264_isavcC((uint8_t*)p_dec->fmt_in.p_extra, p_dec->fmt_in.i_extra))
{
size_t i_buf;
uint8_t *buf = h264_avcC_to_AnnexB_NAL(p_dec->fmt_in.p_extra,
p_dec->fmt_in.i_extra,
&i_buf, &p_sys->nal_length_size);
if(buf)
{
free(p_dec->fmt_in.p_extra);
p_dec->fmt_in.p_extra = buf;
p_dec->fmt_in.i_extra = i_buf;
}
}
}
}
return VLC_SUCCESS;
error:
msg_Err(p_dec, "Error in InitializeMFT()");
DestroyMFT(p_dec);
return VLC_EGENERIC;
}
/*****************************************************************************
* Open: probe the packetizer and return score
* When opening after demux, the packetizer is only loaded AFTER the decoder
* That means that what you set in fmt_out is ignored by the decoder in this special case
*****************************************************************************/
static int Open( vlc_object_t *p_this )
{
decoder_t *p_dec = (decoder_t*)p_this;
decoder_sys_t *p_sys;
int i;
const bool b_avc = (p_dec->fmt_in.i_original_fourcc == VLC_FOURCC( 'a', 'v', 'c', '1' ));
if( p_dec->fmt_in.i_codec != VLC_CODEC_H264 )
return VLC_EGENERIC;
if( b_avc && p_dec->fmt_in.i_extra < 7 )
return VLC_EGENERIC;
/* Allocate the memory needed to store the decoder's structure */
if( ( p_dec->p_sys = p_sys = malloc( sizeof(decoder_sys_t) ) ) == NULL )
{
return VLC_ENOMEM;
}
p_sys->p_ccs = cc_storage_new();
if( unlikely(!p_sys->p_ccs) )
{
free( p_dec->p_sys );
return VLC_ENOMEM;
}
packetizer_Init( &p_sys->packetizer,
p_h264_startcode, sizeof(p_h264_startcode), startcode_FindAnnexB,
p_h264_startcode, 1, 5,
PacketizeReset, PacketizeParse, PacketizeValidate, p_dec );
p_sys->b_slice = false;
p_sys->p_frame = NULL;
p_sys->pp_frame_last = &p_sys->p_frame;
p_sys->p_sei = NULL;
p_sys->pp_sei_last = &p_sys->p_sei;
p_sys->b_new_sps = false;
p_sys->b_new_pps = false;
for( i = 0; i <= H264_SPS_ID_MAX; i++ )
{
p_sys->sps[i].p_sps = NULL;
p_sys->sps[i].p_block = NULL;
}
p_sys->p_active_sps = NULL;
for( i = 0; i <= H264_PPS_ID_MAX; i++ )
{
p_sys->pps[i].p_pps = NULL;
p_sys->pps[i].p_block = NULL;
}
p_sys->p_active_pps = NULL;
p_sys->i_recovery_frame_cnt = UINT_MAX;
h264_slice_init( &p_sys->slice );
p_sys->i_next_block_flags = 0;
p_sys->b_recovered = false;
p_sys->i_recoveryfnum = UINT_MAX;
p_sys->i_frame_dts = VLC_TS_INVALID;
p_sys->i_frame_pts = VLC_TS_INVALID;
p_sys->i_dpb_output_delay = 0;
/* POC */
h264_poc_context_init( &p_sys->pocctx );
p_sys->prevdatedpoc.pts = VLC_TS_INVALID;
date_Init( &p_sys->dts, 30000 * 2, 1001 );
date_Set( &p_sys->dts, VLC_TS_INVALID );
/* Setup properties */
es_format_Copy( &p_dec->fmt_out, &p_dec->fmt_in );
p_dec->fmt_out.i_codec = VLC_CODEC_H264;
p_dec->fmt_out.b_packetized = true;
if( p_dec->fmt_in.video.i_frame_rate_base &&
p_dec->fmt_in.video.i_frame_rate &&
p_dec->fmt_in.video.i_frame_rate <= UINT_MAX / 2 )
{
date_Change( &p_sys->dts, p_dec->fmt_in.video.i_frame_rate * 2,
p_dec->fmt_in.video.i_frame_rate_base );
}
if( b_avc )
{
/* This type of stream is produced by mp4 and matroska
* when we want to store it in another streamformat, you need to convert
* The fmt_in.p_extra should ALWAYS contain the avcC
* The fmt_out.p_extra should contain all the SPS and PPS with 4 byte startcodes */
if( h264_isavcC( p_dec->fmt_in.p_extra, p_dec->fmt_in.i_extra ) )
{
free( p_dec->fmt_out.p_extra );
size_t i_size;
p_dec->fmt_out.p_extra = h264_avcC_to_AnnexB_NAL( p_dec->fmt_in.p_extra,
p_dec->fmt_in.i_extra,
&i_size,
&p_sys->i_avcC_length_size );
p_dec->fmt_out.i_extra = i_size;
p_sys->b_recovered = !!p_dec->fmt_out.i_extra;
if(!p_dec->fmt_out.p_extra)
{
msg_Err( p_dec, "Invalid AVC extradata");
Close( p_this );
return VLC_EGENERIC;
}
}
else
{
msg_Err( p_dec, "Invalid or missing AVC extradata");
Close( p_this );
return VLC_EGENERIC;
}
/* Set callback */
p_dec->pf_packetize = PacketizeAVC1;
}
else
{
/* This type of stream contains data with 3 of 4 byte startcodes
* The fmt_in.p_extra MAY contain SPS/PPS with 4 byte startcodes
* The fmt_out.p_extra should be the same */
/* Set callback */
p_dec->pf_packetize = Packetize;
}
/* */
if( p_dec->fmt_out.i_extra > 0 )
{
packetizer_Header( &p_sys->packetizer,
p_dec->fmt_out.p_extra, p_dec->fmt_out.i_extra );
}
if( b_avc )
{
/* FIXME: that's not correct for every AVC */
if( !p_sys->b_new_pps || !p_sys->b_new_sps )
{
msg_Err( p_dec, "Invalid or missing SPS %d or PPS %d in AVC extradata",
p_sys->b_new_sps, p_sys->b_new_pps );
Close( p_this );
return VLC_EGENERIC;
}
msg_Dbg( p_dec, "Packetizer fed with AVC, nal length size=%d",
p_sys->i_avcC_length_size );
}
/* CC are the same for H264/AVC in T35 sections (ETSI TS 101 154) */
p_dec->pf_get_cc = GetCc;
p_dec->pf_flush = PacketizeFlush;
return VLC_SUCCESS;
}