* mp4.c : MP4 file input module for vlc
*****************************************************************************
* Copyright (C) 2001 VideoLAN
- * $Id: mp4.c,v 1.6 2002/11/19 17:23:21 fenrir Exp $
+ * $Id: mp4.c,v 1.14 2003/01/25 17:21:40 fenrir Exp $
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
- *
+ *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
vlc_module_end();
/*****************************************************************************
- * Declaration of local function
+ * Declaration of local function
*****************************************************************************/
static int MP4_TrackSynchro( input_thread_t *p_input, track_data_mp4_t *p_track );
* MP4Init: check file and initializes MP4 structures
*****************************************************************************/
static int MP4Init( vlc_object_t * p_this )
-{
+{
input_thread_t *p_input = (input_thread_t *)p_this;
uint8_t *p_peek;
- uint32_t i_type;
-
+
demux_sys_t *p_demux;
-
+
MP4_Box_t *p_ftyp;
MP4_Box_t *p_mvhd;
MP4_Box_t *p_trak;
- int i;
+ unsigned int i;
/* I need to seek */
if( !p_input->stream.b_seekable )
{
msg_Warn( p_input, "MP4 plugin discarded (unseekable)" );
return( -1 );
-
- }
+
+ }
/* Initialize access plug-in structures. */
if( p_input->i_mtu == 0 )
{
msg_Warn( p_input, "MP4 plugin discarded (cannot peek)" );
return( -1 );
}
- i_type = ( p_peek[4] ) + ( p_peek[5] << 8 ) +
- ( p_peek[6] << 16 ) + ( p_peek[7] << 24);
- switch( i_type )
+
+
+ switch( VLC_FOURCC( p_peek[4], p_peek[5], p_peek[6], p_peek[7] ) )
{
case( FOURCC_ftyp ):
case( FOURCC_moov ):
case( FOURCC_moof ):
case( FOURCC_mdat ):
- case( FOURCC_udta ):
+ case( FOURCC_udta ):
case( FOURCC_free ):
case( FOURCC_skip ):
- case( FOURCC_wide ):
+ case( FOURCC_wide ):
break;
default:
msg_Warn( p_input, "MP4 plugin discarded (not a valid file)" );
}
/* create our structure that will contains all data */
- if( !( p_input->p_demux_data =
+ if( !( p_input->p_demux_data =
p_demux = malloc( sizeof( demux_sys_t ) ) ) )
{
msg_Err( p_input, "out of memory" );
}
memset( p_demux, 0, sizeof( demux_sys_t ) );
p_input->p_demux_data = p_demux;
-
+
/* Now load all boxes ( except raw data ) */
if( !MP4_BoxGetRoot( p_input, &p_demux->box_root ) )
msg_Err( p_input,
"MP4 plugin discarded (%d moov box)",
MP4_BoxCount( &p_demux->box_root, "/moov" ) );
- MP4End( p_input );
- return( -1 );
+// MP4End( p_input );
+// return( -1 );
}
if( !(p_mvhd = MP4_BoxGet( &p_demux->box_root, "/moov/mvhd" ) ) )
p_demux->i_timescale = p_mvhd->data.p_mvhd->i_timescale;
p_demux->i_duration = p_mvhd->data.p_mvhd->i_duration;
}
-
+
if( !( p_demux->i_tracks =
MP4_BoxCount( &p_demux->box_root, "/moov/trak" ) ) )
{
psz_cat = "unknown";
break;
}
-
+
msg_Dbg( p_input, "adding track[Id 0x%x] %s (%s) language %c%c%c",
p_demux->track[i].i_track_ID,
psz_cat,
}
}
-
+
/* create one program */
vlc_mutex_lock( &p_input->stream.stream_lock );
if( input_InitStream( p_input, 0 ) == -1)
}
p_input->stream.p_selected_program = p_input->stream.pp_programs[0];
/* XXX beurk and beurk, see MP4Demux and MP4Seek */
- p_input->stream.i_mux_rate =
- p_input->stream.p_selected_area->i_size / 50 /
- ( p_demux->i_duration / p_demux->i_timescale );
+ if( p_demux->i_duration/p_demux->i_timescale > 0 )
+ {
+ p_input->stream.i_mux_rate =
+ p_input->stream.p_selected_area->i_size / 50 /
+ ( p_demux->i_duration / p_demux->i_timescale );
+ }
+ else
+ {
+ p_input->stream.i_mux_rate = 0;
+ }
vlc_mutex_unlock( &p_input->stream.stream_lock );
-
-
+
+
for( i = 0; i < p_demux->i_tracks; i++ )
{
/* start decoder for this track if enable by default*/
vlc_mutex_lock( &p_input->stream.stream_lock );
p_input->stream.p_selected_program->b_is_ok = 1;
vlc_mutex_unlock( &p_input->stream.stream_lock );
-
- return( 0 );
+
+ return( 0 );
}
/*****************************************************************************
- * MP4Demux: read packet and send them to decoders
+ * MP4Demux: read packet and send them to decoders
*****************************************************************************
* TODO check for newly selected track (ie audio upt to now )
*****************************************************************************/
static int MP4Demux( input_thread_t *p_input )
{
demux_sys_t *p_demux = p_input->p_demux_data;
- int i_track;
+ unsigned int i_track;
/* XXX beurk, beuRK and BEURK,
but only way I've found to detect seek from interface */
static int MP4Seek ( input_thread_t *p_input, mtime_t i_date )
{
demux_sys_t *p_demux = p_input->p_demux_data;
- int i_track;
+ unsigned int i_track;
/* First update update global time */
p_demux->i_time = i_date * p_demux->i_timescale / 1000000;
* MP4End: frees unused data
*****************************************************************************/
static void __MP4End ( vlc_object_t * p_this )
-{
+{
#define FREE( p ) \
- if( p ) { free( p ); }
- int i_track;
+ if( p ) { free( p ); }
+ unsigned int i_track;
input_thread_t * p_input = (input_thread_t *)p_this;
demux_sys_t *p_demux = p_input->p_demux_data;
-
+
msg_Dbg( p_input, "Freeing all memory" );
MP4_BoxFree( p_input, &p_demux->box_root );
for( i_track = 0; i_track < p_demux->i_tracks; i_track++ )
{
- int i_chunk;
- for( i_chunk = 0;
+ unsigned int i_chunk;
+ for( i_chunk = 0;
i_chunk < p_demux->track[i_track].i_chunk_count; i_chunk++ )
{
if( p_demux->track[i_track].chunk )
FREE(p_demux->track[i_track].chunk[i_chunk].p_sample_delta_dts );
}
}
+ FREE( p_demux->track[i_track].chunk );
if( !p_demux->track[i_track].i_sample_size )
{
}
}
FREE( p_demux->track );
+
+ FREE( p_input->p_demux_data );
#undef FREE
}
static int MP4_TrackSynchro( input_thread_t *p_input, track_data_mp4_t *p_track )
{
demux_sys_t *p_demux = p_input->p_demux_data;
- int i_chunk_last;
+ unsigned int i_chunk_last;
MP4_Box_t *p_stss;
if( !p_track->b_ok ||
/* *** Try to find nearest sync points *** */
if( ( p_stss = MP4_BoxGet( p_track->p_stbl, "stss" ) ) )
{
- int i_index;
- msg_Dbg( p_input,
- "track[Id 0x%x] using Sync Sample Box (stss)",
+ unsigned int i_index;
+ msg_Dbg( p_input,
+ "track[Id 0x%x] using Sync Sample Box (stss)",
p_track->i_track_ID );
for( i_index = 0; i_index < p_stss->data.p_stss->i_entry_count; i_index++ )
{
track_data_mp4_t *p_demux_track,
MP4_Box_t * p_trak )
{
- int i;
+ unsigned int i;
MP4_Box_t *p_tkhd = MP4_BoxGet( p_trak, "tkhd" );
MP4_Box_t *p_tref = MP4_BoxGet( p_trak, "tref" );
MP4_Box_t *p_co64; /* give offset for each chunk, same for stco and co64 */
MP4_Box_t *p_stsc;
- int i_chunk;
- int i_index, i_last;
+ unsigned int i_chunk;
+ unsigned int i_index, i_last;
if( ( !(p_co64 = MP4_BoxGet( p_demux_track->p_stbl, "stco" ) )&&
static void MP4_StartDecoder( input_thread_t *p_input,
track_data_mp4_t *p_demux_track )
{
- MP4_Box_t *p_sample;
- int i;
- int i_chunk;
+ MP4_Box_t * p_sample;
+ unsigned int i;
+ unsigned int i_chunk;
+
+ unsigned int i_decoder_specific_info_len;
+ uint8_t * p_decoder_specific_info;
+ pes_packet_t *p_pes_init;
- int i_decoder_specific_info_len;
- uint8_t *p_decoder_specific_info;
-
uint8_t *p_init;
BITMAPINFOHEADER *p_bih;
+ WAVEFORMATEX *p_wf;
MP4_Box_t *p_esds;
-
+
if( (!p_demux_track->b_ok )||( p_demux_track->i_cat == UNKNOWN_ES ) )
{
return;
}
-
+
msg_Dbg( p_input, "Starting decoder for track[Id 0x%x]",
p_demux_track->i_track_ID );
p_demux_track->p_es->psz_desc[i] = p_demux_track->i_language[i];
}
p_demux_track->p_es->psz_desc[3] = '\0';
-
+
p_demux_track->p_es->i_stream_id = p_demux_track->i_track_ID;
/* It's a little ugly but .. there are special cases */
p_demux_track->p_es->i_fourcc = p_sample->i_type;
break;
}
-
+
p_demux_track->p_es->i_cat = p_demux_track->i_cat;
-
+
i_decoder_specific_info_len = 0;
p_decoder_specific_info = NULL;
+ p_pes_init = NULL;
/* now see if esds is present and if so create a data packet
with decoder_specific_info */
--> bitmapinfoheader_t : width and height
--> waveformatex_t : channels, samplerate, bitspersample
and at the end I add p_decoder_specific_info
-
+
TODO set more values
-
+
*/
switch( p_demux_track->i_cat )
case( VIDEO_ES ):
/* now create a bitmapinfoheader_t for decoder and
add information found in p_esds */
- p_init = malloc( sizeof( BITMAPINFOHEADER ) + i_decoder_specific_info_len );
+ /* XXX XXX + 16 are for avoid segfault when ffmpeg access beyong the data */
+ p_init = malloc( sizeof( BITMAPINFOHEADER ) + i_decoder_specific_info_len + 16 );
p_bih = (BITMAPINFOHEADER*)p_init;
p_bih->biSize = sizeof( BITMAPINFOHEADER ) + i_decoder_specific_info_len;
// fall on display size
p_bih->biHeight = p_demux_track->i_height;
}
-
+
if( i_decoder_specific_info_len )
{
+ data_packet_t *p_data;
+
memcpy( p_init + sizeof( BITMAPINFOHEADER ),
p_decoder_specific_info,
i_decoder_specific_info_len);
+
+ /* If stream is mpeg4 video we send specific_info,
+ as it's needed to decode it (vol) */
+ switch( p_demux_track->p_es->i_fourcc )
+ {
+ case VLC_FOURCC( 'm','p','4','v' ):
+ case VLC_FOURCC( 'D','I','V','X' ):
+ case VLC_FOURCC( 'd','i','v','x' ):
+ p_pes_init = input_NewPES( p_input->p_method_data );
+ p_data = input_NewPacket( p_input->p_method_data,
+ i_decoder_specific_info_len);
+ memcpy( p_data->p_payload_start,
+ p_decoder_specific_info,
+ i_decoder_specific_info_len );
+ p_pes_init->i_dts = p_pes_init->i_pts = 0;
+ p_pes_init->p_first = p_pes_init->p_last = p_data;
+ p_pes_init->i_nb_data = 1;
+ p_pes_init->i_pes_size = i_decoder_specific_info_len;
+ break;
+ default:
+ break;
+ }
+
}
break;
case( AUDIO_ES ):
- p_init = malloc( 18 + i_decoder_specific_info_len);
- memset( p_init, 0, 18 + i_decoder_specific_info_len);
- MP4_Set2BytesLE( p_init + 2, /* i_channel */
- p_sample->data.p_sample_soun->i_channelcount );
- MP4_Set4BytesLE( p_init + 4, /* samplepersec */
- p_sample->data.p_sample_soun->i_sampleratehi );
- MP4_Set4BytesLE( p_init + 8, /* avgbytespersec */
- p_sample->data.p_sample_soun->i_channelcount *
- p_sample->data.p_sample_soun->i_sampleratehi *
- (p_sample->data.p_sample_soun->i_samplesize/8) );
- MP4_Set2BytesLE( p_init + 14, /* bits/sample */
- p_sample->data.p_sample_soun->i_samplesize );
-
- MP4_Set2BytesLE( p_init + 16, /* i_size, specific info len*/
- i_decoder_specific_info_len );
+ p_init = malloc( sizeof( WAVEFORMATEX ) + i_decoder_specific_info_len + 16 );
+ p_wf = (WAVEFORMATEX*)p_init;
+
+ p_wf->wFormatTag = 0;
+ p_wf->nChannels = p_sample->data.p_sample_soun->i_channelcount;
+ p_wf->nSamplesPerSec = p_sample->data.p_sample_soun->i_sampleratehi;
+ p_wf->nAvgBytesPerSec = p_sample->data.p_sample_soun->i_channelcount *
+ p_sample->data.p_sample_soun->i_sampleratehi *
+ p_sample->data.p_sample_soun->i_samplesize / 8;
+ p_wf->nBlockAlign = 0;
+ p_wf->wBitsPerSample = p_sample->data.p_sample_soun->i_samplesize;
+ p_wf->cbSize = i_decoder_specific_info_len;
+
if( i_decoder_specific_info_len )
{
- memcpy( p_init + 18,
+ memcpy( p_init + sizeof( WAVEFORMATEX ),
p_decoder_specific_info,
i_decoder_specific_info_len);
}
+
break;
default:
p_init = NULL;
break;
}
-
- p_demux_track->p_es->p_demux_data = (es_sys_t *)p_init;
+ if( p_demux_track->i_cat == AUDIO_ES )
+ {
+ p_demux_track->p_es->p_waveformatex = (void*)p_init;
+ }
+ else if( p_demux_track->i_cat == VIDEO_ES )
+ {
+ p_demux_track->p_es->p_bitmapinfoheader = (void*)p_init;
+ }
vlc_mutex_lock( &p_input->stream.stream_lock );
input_SelectES( p_input, p_demux_track->p_es );
vlc_mutex_unlock( &p_input->stream.stream_lock );
+ if( !p_demux_track->p_es->p_decoder_fifo )
+ {
+ msg_Warn( p_input, "cannot start decoder" );
+ return;
+ }
+ if( p_pes_init != NULL )
+ {
+ input_DecodePES( p_demux_track->p_es->p_decoder_fifo, p_pes_init );
+ }
p_demux_track->b_ok = 1;
p_demux_track->b_selected = 1;
}
track_data_mp4_t *p_demux_track,
pes_packet_t **pp_pes )
{
- int i_size;
+ size_t i_size;
off_t i_pos;
data_packet_t *p_data;
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