+/**
+ * Create a decoder object
+ *
+ * \param p_input the input thread
+ * \param p_es the es descriptor
+ * \param i_object_type Object type as define in include/vlc_objects.h
+ * \return the decoder object
+ */
+static decoder_t * CreateDecoder( input_thread_t * p_input,
+ es_descriptor_t * p_es, int i_object_type )
+{
+ decoder_t *p_dec;
+
+ p_dec = vlc_object_create( p_input, i_object_type );
+ if( p_dec == NULL )
+ {
+ msg_Err( p_input, "out of memory" );
+ return NULL;
+ }
+
+ p_dec->pf_decode_audio = 0;
+ p_dec->pf_decode_video = 0;
+ p_dec->pf_decode_sub = 0;
+ p_dec->pf_packetize = 0;
+
+ /* Select a new ES */
+ INSERT_ELEM( p_input->stream.pp_selected_es,
+ p_input->stream.i_selected_es_number,
+ p_input->stream.i_selected_es_number,
+ p_es );
+
+ /* Initialize the decoder fifo */
+ p_dec->p_module = NULL;
+
+ p_dec->fmt_in = p_es->fmt;
+
+ if( p_es->p_waveformatex )
+ {
+#define p_wf ((WAVEFORMATEX *)p_es->p_waveformatex)
+ p_dec->fmt_in.audio.i_channels = p_wf->nChannels;
+ p_dec->fmt_in.audio.i_rate = p_wf->nSamplesPerSec;
+ p_dec->fmt_in.i_bitrate = p_wf->nAvgBytesPerSec * 8;
+ p_dec->fmt_in.audio.i_blockalign = p_wf->nBlockAlign;
+ p_dec->fmt_in.audio.i_bitspersample = p_wf->wBitsPerSample;
+ p_dec->fmt_in.i_extra = p_wf->cbSize;
+ p_dec->fmt_in.p_extra = NULL;
+ if( p_wf->cbSize )
+ {
+ p_dec->fmt_in.p_extra = malloc( p_wf->cbSize );
+ memcpy( p_dec->fmt_in.p_extra, &p_wf[1], p_wf->cbSize );
+ }
+ }
+
+ if( p_es->p_bitmapinfoheader )
+ {
+#define p_bih ((BITMAPINFOHEADER *) p_es->p_bitmapinfoheader)
+ p_dec->fmt_in.i_extra = p_bih->biSize - sizeof(BITMAPINFOHEADER);
+ p_dec->fmt_in.p_extra = NULL;
+ if( p_dec->fmt_in.i_extra )
+ {
+ p_dec->fmt_in.p_extra = malloc( p_dec->fmt_in.i_extra );
+ memcpy( p_dec->fmt_in.p_extra, &p_bih[1], p_dec->fmt_in.i_extra );
+ }
+
+ p_dec->fmt_in.video.i_width = p_bih->biWidth;
+ p_dec->fmt_in.video.i_height = p_bih->biHeight;
+ }
+
+ /* FIXME
+ * - 1: beurk
+ * - 2: I'm not sure there isn't any endian problem here (spu)... */
+ if( p_es->i_cat == SPU_ES && p_es->p_demux_data )
+ {
+ if( ( p_es->i_fourcc == VLC_FOURCC( 's', 'p', 'u', ' ' ) ||
+ p_es->i_fourcc == VLC_FOURCC( 's', 'p', 'u', 'b' ) ) &&
+ *((uint32_t*)p_es->p_demux_data) == 0xBeef )
+ {
+ memcpy( p_dec->fmt_in.subs.spu.palette,
+ p_es->p_demux_data, 17 * 4 );
+ }
+ else if( p_es->i_fourcc == VLC_FOURCC( 'd', 'v', 'b', 's' ) )
+ {
+ dvb_spuinfo_t *p_dvbs = (dvb_spuinfo_t*)p_es->p_demux_data;
+
+ p_dec->fmt_in.subs.dvb.i_id = p_dvbs->i_id;
+ }
+ }
+
+ p_dec->fmt_in.i_cat = p_es->i_cat;
+ p_dec->fmt_in.i_codec = p_es->i_fourcc;
+
+ p_dec->fmt_out = null_es_format;
+
+ /* Allocate our private structure for the decoder */
+ p_dec->p_owner = (decoder_owner_sys_t*)malloc(sizeof(decoder_owner_sys_t));
+ if( p_dec->p_owner == NULL )
+ {
+ msg_Err( p_dec, "out of memory" );
+ return NULL;
+ }
+ p_dec->p_owner->b_own_thread = VLC_TRUE;
+ p_dec->p_owner->p_aout = NULL;
+ p_dec->p_owner->p_aout_input = NULL;
+ p_dec->p_owner->p_vout = NULL;
+ p_dec->p_owner->p_sout = p_input->stream.p_sout;
+ p_dec->p_owner->p_sout_input = NULL;
+ p_dec->p_owner->p_es_descriptor = p_es;
+ /* decoder fifo */
+ if( ( p_dec->p_owner->p_fifo = block_FifoNew( p_dec ) ) == NULL )
+ {
+ msg_Err( p_dec, "out of memory" );
+ return NULL;
+ }
+ p_dec->p_owner->p_method_data = p_input->p_method_data;
+
+ /* Set buffers allocation callbacks for the decoders */
+ p_dec->pf_aout_buffer_new = aout_new_buffer;
+ p_dec->pf_aout_buffer_del = aout_del_buffer;
+ p_dec->pf_vout_buffer_new = vout_new_buffer;
+ p_dec->pf_vout_buffer_del = vout_del_buffer;
+ p_dec->pf_picture_link = vout_link_picture;
+ p_dec->pf_picture_unlink = vout_unlink_picture;
+
+ vlc_object_attach( p_dec, p_input );
+
+ return p_dec;
+}
+
+/**
+ * The decoding main loop
+ *
+ * \param p_dec the decoder
+ * \return 0
+ */
+static int DecoderThread( decoder_t * p_dec )
+{
+ block_t *p_block;
+
+ /* The decoder's main loop */
+ while( !p_dec->b_die && !p_dec->b_error )
+ {
+ if( ( p_block = block_FifoGet( p_dec->p_owner->p_fifo ) ) == NULL )
+ {
+ p_dec->b_error = 1;
+ break;
+ }
+ if( p_block->i_buffer <= 0 )
+ {
+ block_Release( p_block );
+ continue;
+ }
+ if( DecoderDecode( p_dec, p_block ) )
+ {
+ break;
+ }
+ }
+
+ while( !p_dec->b_die )
+ {
+ /* Trash all received PES packets */
+ p_block = block_FifoGet( p_dec->p_owner->p_fifo );
+ if( p_block )
+ {
+ block_Release( p_block );
+ }
+ }
+
+ /* XXX We do it here because of dll loader that want close in the
+ * same thread than open/decode */
+ /* Unneed module */
+ module_Unneed( p_dec, p_dec->p_module );
+
+ return 0;
+}
+
+/**
+ * Decode a block
+ *
+ * \param p_dec the decoder object
+ * \param p_block the block to decode
+ * \return VLC_SUCCESS or an error code
+ */
+static int DecoderDecode( decoder_t *p_dec, block_t *p_block )
+{
+ if( p_block->i_buffer <= 0 )
+ {
+ block_Release( p_block );
+ return VLC_SUCCESS;
+ }
+
+ if( p_dec->i_object_type == VLC_OBJECT_PACKETIZER )
+ {
+ block_t *p_sout_block;
+
+ while( (p_sout_block = p_dec->pf_packetize( p_dec, &p_block )) )
+ {
+ if( !p_dec->p_owner->p_sout_input )
+ {
+ es_format_Copy( &p_dec->p_owner->sout, &p_dec->fmt_out );
+ if( p_dec->p_owner->p_es_descriptor->p_pgrm )
+ {
+ p_dec->p_owner->sout.i_group =
+ p_dec->p_owner->p_es_descriptor->p_pgrm->i_number;
+ }
+ p_dec->p_owner->sout.i_id = p_dec->p_owner->p_es_descriptor->i_id - 1;
+ if( p_dec->fmt_in.psz_language )
+ {
+ p_dec->p_owner->sout.psz_language = strdup( p_dec->fmt_in.psz_language );
+ }
+
+ p_dec->p_owner->p_sout_input =
+ sout_InputNew( p_dec->p_owner->p_sout, &p_dec->p_owner->sout );
+
+ if( p_dec->p_owner->p_sout_input == NULL )
+ {
+ msg_Err( p_dec, "cannot create packetizer output" );
+ p_dec->b_error = VLC_TRUE;
+
+ while( p_sout_block )
+ {
+ block_t *p_next = p_sout_block->p_next;
+ block_Release( p_sout_block );
+ p_sout_block = p_next;
+ }
+ break;
+ }
+ }
+
+ while( p_sout_block )
+ {
+ block_t *p_next = p_sout_block->p_next;
+ sout_buffer_t *p_sout_buffer;
+
+ p_sout_buffer =
+ sout_BufferNew( p_dec->p_owner->p_sout_input->p_sout,
+ p_sout_block->i_buffer );
+ if( p_sout_buffer == NULL )
+ {
+ msg_Err( p_dec, "cannot get sout buffer" );
+ break;
+ }
+
+ memcpy( p_sout_buffer->p_buffer, p_sout_block->p_buffer,
+ p_sout_block->i_buffer );
+
+ p_sout_buffer->i_pts = p_sout_block->i_pts;
+ p_sout_buffer->i_dts = p_sout_block->i_dts;
+ p_sout_buffer->i_length = p_sout_block->i_length;
+ p_sout_buffer->i_flags =
+ (p_sout_block->i_flags << SOUT_BUFFER_FLAGS_BLOCK_SHIFT)
+ & SOUT_BUFFER_FLAGS_BLOCK_MASK;
+
+ block_Release( p_sout_block );
+
+ sout_InputSendBuffer( p_dec->p_owner->p_sout_input, p_sout_buffer );
+
+ p_sout_block = p_next;
+ }
+ }
+ }
+ else if( p_dec->fmt_in.i_cat == AUDIO_ES )
+ {
+ aout_buffer_t *p_aout_buf;
+
+ while( (p_aout_buf = p_dec->pf_decode_audio( p_dec, &p_block )) )
+ {
+ aout_DecPlay( p_dec->p_owner->p_aout,
+ p_dec->p_owner->p_aout_input, p_aout_buf );
+ }
+ }
+ else if( p_dec->fmt_in.i_cat == VIDEO_ES )
+ {
+ picture_t *p_pic;
+
+ while( (p_pic = p_dec->pf_decode_video( p_dec, &p_block )) )
+ {
+ vout_DatePicture( p_dec->p_owner->p_vout, p_pic, p_pic->date );
+ vout_DisplayPicture( p_dec->p_owner->p_vout, p_pic );
+ }
+ }
+ else if( p_dec->fmt_in.i_cat == SPU_ES )
+ {
+ p_dec->pf_decode_sub( p_dec, &p_block );
+ }
+ else
+ {
+ msg_Err( p_dec, "unknown ES format" );
+ p_dec->b_error = 1;
+ }
+
+ return p_dec->b_error ? VLC_EGENERIC : VLC_SUCCESS;
+}
+
+/**
+ * Destroys a decoder object
+ *
+ * \param p_dec the decoder object
+ * \return nothing
+ */
+static void DeleteDecoder( decoder_t * p_dec )
+{
+ vlc_object_detach( p_dec );
+
+ msg_Dbg( p_dec,
+ "killing decoder fourcc `%4.4s', %d PES in FIFO",
+ (char*)&p_dec->fmt_in.i_codec,
+ p_dec->p_owner->p_fifo->i_depth );
+
+ /* Free all packets still in the decoder fifo. */
+ block_FifoEmpty( p_dec->p_owner->p_fifo );
+ block_FifoRelease( p_dec->p_owner->p_fifo );
+
+ /* Cleanup */
+ if( p_dec->p_owner->p_aout_input )
+ aout_DecDelete( p_dec->p_owner->p_aout, p_dec->p_owner->p_aout_input );
+
+ if( p_dec->p_owner->p_vout )
+ {
+ int i_pic;
+
+#define p_pic p_dec->p_owner->p_vout->render.pp_picture[i_pic]
+ /* Hack to make sure all the the pictures are freed by the decoder */
+ for( i_pic = 0; i_pic < p_dec->p_owner->p_vout->render.i_pictures;
+ i_pic++ )
+ {
+ if( p_pic->i_status == RESERVED_PICTURE )
+ vout_DestroyPicture( p_dec->p_owner->p_vout, p_pic );
+ if( p_pic->i_refcount > 0 )
+ vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
+ }
+#undef p_pic
+
+ /* We are about to die. Reattach video output to p_vlc. */
+ vout_Request( p_dec, p_dec->p_owner->p_vout, 0, 0, 0, 0 );
+ }
+
+ if( p_dec->p_owner->p_sout_input )
+ {
+ sout_InputDelete( p_dec->p_owner->p_sout_input );
+ if( p_dec->p_owner->sout.i_extra ) free(p_dec->p_owner->sout.p_extra);
+ }
+
+ if( p_dec->fmt_in.i_extra ) free( p_dec->fmt_in.p_extra );
+ if( p_dec->fmt_out.i_extra ) free( p_dec->fmt_out.p_extra );
+
+ free( p_dec->p_owner );
+}
+
+/*****************************************************************************
+ * Buffers allocation callbacks for the decoders
+ *****************************************************************************/
+static aout_buffer_t *aout_new_buffer( decoder_t *p_dec, int i_samples )
+{
+ decoder_owner_sys_t *p_sys = (decoder_owner_sys_t *)p_dec->p_owner;
+ aout_buffer_t *p_buffer;
+
+ if( p_sys->p_aout_input != NULL &&
+ ( p_dec->fmt_out.audio.i_rate != p_sys->audio.i_rate ||
+ p_dec->fmt_out.audio.i_original_channels !=
+ p_sys->audio.i_original_channels ||
+ p_dec->fmt_out.audio.i_bytes_per_frame !=
+ p_sys->audio.i_bytes_per_frame ) )
+ {
+ /* Parameters changed, restart the aout */
+ aout_DecDelete( p_sys->p_aout, p_sys->p_aout_input );
+ p_sys->p_aout_input = NULL;
+ }
+
+ if( p_sys->p_aout_input == NULL )
+ {
+ p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
+ p_sys->audio = p_dec->fmt_out.audio;
+ p_sys->p_aout_input =
+ aout_DecNew( p_dec, &p_sys->p_aout, &p_sys->audio );
+ if( p_sys->p_aout_input == NULL )
+ {
+ msg_Err( p_dec, "failed to create audio output" );
+ p_dec->b_error = VLC_TRUE;
+ return NULL;
+ }
+ p_dec->fmt_out.audio.i_bytes_per_frame =
+ p_sys->audio.i_bytes_per_frame;
+ }
+
+ p_buffer = aout_DecNewBuffer( p_sys->p_aout, p_sys->p_aout_input,
+ i_samples );
+
+ return p_buffer;
+}
+
+static void aout_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
+{
+ aout_DecDeleteBuffer( p_dec->p_owner->p_aout,
+ p_dec->p_owner->p_aout_input, p_buffer );
+}
+
+static picture_t *vout_new_buffer( decoder_t *p_dec )
+{
+ decoder_owner_sys_t *p_sys = (decoder_owner_sys_t *)p_dec->p_owner;
+ picture_t *p_pic;
+
+ if( p_sys->p_vout == NULL ||
+ p_dec->fmt_out.video.i_width != p_sys->video.i_width ||
+ p_dec->fmt_out.video.i_height != p_sys->video.i_height ||
+ p_dec->fmt_out.video.i_chroma != p_sys->video.i_chroma ||
+ p_dec->fmt_out.video.i_aspect != p_sys->video.i_aspect )
+ {
+ if( !p_dec->fmt_out.video.i_width ||
+ !p_dec->fmt_out.video.i_height )
+ {
+ /* Can't create a new vout without display size */
+ return NULL;
+ }
+
+ p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
+ p_sys->video = p_dec->fmt_out.video;
+
+ p_sys->p_vout = vout_Request( p_dec, p_sys->p_vout,
+ p_sys->video.i_width,
+ p_sys->video.i_height,
+ p_sys->video.i_chroma,
+ p_sys->video.i_aspect );
+
+ if( p_sys->p_vout == NULL )
+ {
+ msg_Err( p_dec, "failed to create video output" );
+ p_dec->b_error = VLC_TRUE;
+ return NULL;
+ }
+ }
+
+ /* Get a new picture */
+ while( !(p_pic = vout_CreatePicture( p_sys->p_vout, 0, 0, 0 ) ) )
+ {
+ int i_pic, i_ready_pic = 0;
+
+ if( p_dec->b_die || p_dec->b_error )
+ {
+ return NULL;
+ }
+
+#define p_pic p_dec->p_owner->p_vout->render.pp_picture[i_pic]
+ /* Check the decoder doesn't leak pictures */
+ for( i_pic = 0; i_pic < p_dec->p_owner->p_vout->render.i_pictures;
+ i_pic++ )
+ {
+ if( p_pic->i_status == READY_PICTURE && i_ready_pic++ > 0 ) break;
+
+ if( p_pic->i_status != DISPLAYED_PICTURE &&
+ p_pic->i_status != RESERVED_PICTURE &&
+ p_pic->i_status != READY_PICTURE ) break;
+
+ if( !p_pic->i_refcount ) break;
+ }
+ if( i_pic == p_dec->p_owner->p_vout->render.i_pictures )
+ {
+ msg_Err( p_dec, "decoder is leaking pictures, resetting the heap" );
+
+ /* Just free all the pictures */
+ for( i_pic = 0; i_pic < p_dec->p_owner->p_vout->render.i_pictures;
+ i_pic++ )
+ {
+ if( p_pic->i_status == RESERVED_PICTURE )
+ vout_DestroyPicture( p_dec->p_owner->p_vout, p_pic );
+ if( p_pic->i_refcount > 0 )
+ vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
+ }
+ }
+#undef p_pic
+
+ msleep( VOUT_OUTMEM_SLEEP );
+ }
+
+ return p_pic;
+}
+
+static void vout_del_buffer( decoder_t *p_dec, picture_t *p_pic )
+{
+ vout_DestroyPicture( p_dec->p_owner->p_vout, p_pic );
+}
+
+static void vout_link_picture( decoder_t *p_dec, picture_t *p_pic )
+{
+ vout_LinkPicture( p_dec->p_owner->p_vout, p_pic );
+}
+
+static void vout_unlink_picture( decoder_t *p_dec, picture_t *p_pic )
+{
+ vout_UnlinkPicture( p_dec->p_owner->p_vout, p_pic );
+}