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-rw-r--r--libmediafork/muxogm.c364
1 files changed, 364 insertions, 0 deletions
diff --git a/libmediafork/muxogm.c b/libmediafork/muxogm.c
new file mode 100644
index 000000000..62ff4e7b8
--- /dev/null
+++ b/libmediafork/muxogm.c
@@ -0,0 +1,364 @@
+/* $Id: muxogm.c,v 1.4 2005/02/20 00:41:56 titer Exp $
+
+ This file is part of the HandBrake source code.
+ Homepage: <http://handbrake.m0k.org/>.
+ It may be used under the terms of the GNU General Public License. */
+
+#include "mediafork.h"
+
+#include <ogg/ogg.h>
+
+struct hb_mux_object_s
+{
+ HB_MUX_COMMON;
+
+ hb_job_t * job;
+
+ FILE * file;
+};
+
+struct hb_mux_data_s
+{
+ int codec;
+ ogg_stream_state os;
+ int i_packet_no;
+};
+
+typedef struct __attribute__((__packed__))
+{
+ uint8_t i_packet_type;
+
+ char stream_type[8];
+ char sub_type[4];
+
+ int32_t i_size;
+
+ int64_t i_time_unit;
+ int64_t i_samples_per_unit;
+ int32_t i_default_len;
+
+ int32_t i_buffer_size;
+ int16_t i_bits_per_sample;
+ int16_t i_padding_0; // hum hum
+ union
+ {
+ struct
+ {
+ int32_t i_width;
+ int32_t i_height;
+
+ } video;
+ struct
+ {
+ int16_t i_channels;
+ int16_t i_block_align;
+ int32_t i_avgbytespersec;
+ } audio;
+ } header;
+
+} ogg_stream_header_t;
+
+#define SetWLE( p, v ) _SetWLE( (uint8_t*)p, v)
+static void _SetWLE( uint8_t *p, uint16_t i_dw )
+{
+ p[1] = ( i_dw >> 8 )&0xff;
+ p[0] = ( i_dw )&0xff;
+}
+
+#define SetDWLE( p, v ) _SetDWLE( (uint8_t*)p, v)
+static void _SetDWLE( uint8_t *p, uint32_t i_dw )
+{
+ p[3] = ( i_dw >> 24 )&0xff;
+ p[2] = ( i_dw >> 16 )&0xff;
+ p[1] = ( i_dw >> 8 )&0xff;
+ p[0] = ( i_dw )&0xff;
+}
+#define SetQWLE( p, v ) _SetQWLE( (uint8_t*)p, v)
+static void _SetQWLE( uint8_t *p, uint64_t i_qw )
+{
+ SetDWLE( p, i_qw&0xffffffff );
+ SetDWLE( p+4, ( i_qw >> 32)&0xffffffff );
+}
+
+static int OGMFlush( hb_mux_object_t * m, hb_mux_data_t * mux_data )
+{
+ for( ;; )
+ {
+ ogg_page og;
+ if( ogg_stream_flush( &mux_data->os, &og ) == 0 )
+ {
+ break;
+ }
+ if( fwrite( og.header, og.header_len, 1, m->file ) <= 0 ||
+ fwrite( og.body, og.body_len, 1, m->file ) <= 0 )
+ {
+ return -1;
+ }
+ }
+ return 0;
+}
+
+/**********************************************************************
+ * OGMInit
+ **********************************************************************
+ * Allocates hb_mux_data_t structures, create file and write headers
+ *********************************************************************/
+static int OGMInit( hb_mux_object_t * m )
+{
+ hb_job_t * job = m->job;
+ hb_title_t * title = job->title;
+
+ hb_audio_t * audio;
+ hb_mux_data_t * mux_data;
+ int i;
+
+ ogg_packet op;
+ ogg_stream_header_t h;
+
+ /* Open output file */
+ if( ( m->file = fopen( job->file, "wb" ) ) == NULL )
+ {
+ hb_log( "muxogm: failed to open `%s'", job->file );
+ return -1;
+ }
+ hb_log( "muxogm: `%s' opened", job->file );
+
+ /* Video track */
+ mux_data = malloc( sizeof( hb_mux_data_t ) );
+ mux_data->codec = job->vcodec;
+ mux_data->i_packet_no = 0;
+ job->mux_data = mux_data;
+ ogg_stream_init( &mux_data->os, 0 );
+
+ /* Audio */
+ for( i = 0; i < hb_list_count( title->list_audio ); i++ )
+ {
+ audio = hb_list_item( title->list_audio, i );
+ mux_data = malloc( sizeof( hb_mux_data_t ) );
+ mux_data->codec = job->acodec;
+ mux_data->i_packet_no = 0;
+ audio->mux_data = mux_data;
+ ogg_stream_init( &mux_data->os, i + 1 );
+ }
+
+
+ /* First pass: all b_o_s packets */
+
+ /* Video */
+ mux_data = job->mux_data;
+ memset( &h, 0, sizeof( ogg_stream_header_t ) );
+ h.i_packet_type = 0x01;
+ memcpy( h.stream_type, "video ", 8 );
+ if( mux_data->codec == HB_VCODEC_X264 )
+ {
+ memcpy( h.sub_type, "H264", 4 );
+ }
+ else if( mux_data->codec == HB_VCODEC_XVID )
+ {
+ memcpy( h.sub_type, "XVID", 4 );
+ }
+ else
+ {
+ memcpy( h.sub_type, "DX50", 4 );
+ }
+ SetDWLE( &h.i_size, sizeof( ogg_stream_header_t ) - 1);
+ SetQWLE( &h.i_time_unit, (int64_t) 10 * 1000 * 1000 *
+ (int64_t) job->vrate_base / (int64_t) job->vrate );
+ SetQWLE( &h.i_samples_per_unit, 1 );
+ SetDWLE( &h.i_default_len, 0 );
+ SetDWLE( &h.i_buffer_size, 1024*1024 );
+ SetWLE ( &h.i_bits_per_sample, 0 );
+ SetDWLE( &h.header.video.i_width, job->width );
+ SetDWLE( &h.header.video.i_height, job->height );
+ op.packet = (unsigned char*)&h;
+ op.bytes = sizeof( ogg_stream_header_t );
+ op.b_o_s = 1;
+ op.e_o_s = 0;
+ op.granulepos = 0;
+ op.packetno = mux_data->i_packet_no++;
+ ogg_stream_packetin( &mux_data->os, &op );
+ OGMFlush( m, mux_data );
+
+ /* Audio */
+ for( i = 0; i < hb_list_count( title->list_audio ); i++ )
+ {
+ audio = hb_list_item( title->list_audio, i );
+ mux_data = audio->mux_data;
+ memset( &h, 0, sizeof( ogg_stream_header_t ) );
+ switch( job->acodec )
+ {
+ case HB_ACODEC_LAME:
+ {
+ h.i_packet_type = 0x01;
+ memcpy( h.stream_type, "audio ", 8 );
+ memcpy( h.sub_type, "55 ", 4 );
+
+ SetDWLE( &h.i_size, sizeof( ogg_stream_header_t ) - 1);
+ SetQWLE( &h.i_time_unit, 0 );
+ SetQWLE( &h.i_samples_per_unit, job->arate );
+ SetDWLE( &h.i_default_len, 1 );
+ SetDWLE( &h.i_buffer_size, 30 * 1024 );
+ SetWLE ( &h.i_bits_per_sample, 0 );
+
+ SetDWLE( &h.header.audio.i_channels, 2 );
+ SetDWLE( &h.header.audio.i_block_align, 0 );
+ SetDWLE( &h.header.audio.i_avgbytespersec,
+ job->abitrate / 8 );
+
+ op.packet = (char*) &h;
+ op.bytes = sizeof( ogg_stream_header_t );
+ op.b_o_s = 1;
+ op.e_o_s = 0;
+ op.granulepos = 0;
+ op.packetno = mux_data->i_packet_no++;
+ ogg_stream_packetin( &mux_data->os, &op );
+ break;
+ }
+ case HB_ACODEC_VORBIS:
+ {
+ memcpy( &op, audio->config.vorbis.headers[0],
+ sizeof( ogg_packet ) );
+ op.packet = audio->config.vorbis.headers[0] +
+ sizeof( ogg_packet );
+ ogg_stream_packetin( &mux_data->os, &op );
+ break;
+ }
+ default:
+ hb_log( "muxogm: unhandled codec" );
+ break;
+ }
+ OGMFlush( m, mux_data );
+ }
+
+ /* second pass: all non b_o_s packets */
+ for( i = 0; i < hb_list_count( title->list_audio ); i++ )
+ {
+ audio = hb_list_item( title->list_audio, i );
+ if( job->acodec == HB_ACODEC_VORBIS )
+ {
+ int j;
+ mux_data = audio->mux_data;
+
+ for( j = 1; j < 3; j++ )
+ {
+ memcpy( &op, audio->config.vorbis.headers[j],
+ sizeof( ogg_packet ) );
+ op.packet = audio->config.vorbis.headers[j] +
+ sizeof( ogg_packet );
+ ogg_stream_packetin( &mux_data->os, &op );
+
+ OGMFlush( m, mux_data );
+ }
+ }
+ }
+ hb_log( "muxogm: headers written" );
+
+ return 0;
+}
+
+static int OGMMux( hb_mux_object_t * m, hb_mux_data_t * mux_data,
+ hb_buffer_t * buf )
+{
+ ogg_packet op;
+
+ switch( mux_data->codec )
+ {
+ case HB_VCODEC_FFMPEG:
+ case HB_VCODEC_XVID:
+ case HB_VCODEC_X264:
+ op.bytes = buf->size + 1;
+ op.packet = malloc( op.bytes );
+ op.packet[0] = buf->key ? 0x08 : 0x00;
+ memcpy( &op.packet[1], buf->data, buf->size );
+ op.b_o_s = 0;
+ op.e_o_s = 0;
+ op.granulepos = mux_data->i_packet_no;
+ op.packetno = mux_data->i_packet_no++;
+ break;
+ case HB_ACODEC_LAME:
+ op.bytes = buf->size + 1;
+ op.packet = malloc( op.bytes );
+ op.packet[0] = 0x08;
+ memcpy( &op.packet[1], buf->data, buf->size );
+ op.b_o_s = 0;
+ op.e_o_s = 0;
+ op.granulepos = mux_data->i_packet_no * 1152;
+ op.packetno = mux_data->i_packet_no++;
+ break;
+ case HB_ACODEC_VORBIS:
+ memcpy( &op, buf->data, sizeof( ogg_packet ) );
+ op.packet = malloc( op.bytes );
+ memcpy( op.packet, buf->data + sizeof( ogg_packet ), op.bytes );
+ break;
+
+ default:
+ hb_log( "muxogm: unhandled codec" );
+ op.bytes = 0;
+ op.packet = NULL;
+ break;
+ }
+
+ if( op.packet )
+ {
+ ogg_stream_packetin( &mux_data->os, &op );
+
+ for( ;; )
+ {
+ ogg_page og;
+ if( ogg_stream_pageout( &mux_data->os, &og ) == 0 )
+ {
+ break;
+ }
+
+ if( fwrite( og.header, og.header_len, 1, m->file ) <= 0 ||
+ fwrite( og.body, og.body_len, 1, m->file ) <= 0 )
+ {
+ hb_log( "muxogm: write failed" );
+ break;
+ }
+ }
+ free( op.packet );
+ }
+ return 0;
+}
+
+static int OGMEnd( hb_mux_object_t * m )
+{
+ hb_job_t * job = m->job;
+
+ hb_title_t * title = job->title;
+ hb_audio_t * audio;
+ hb_mux_data_t * mux_data;
+ int i;
+
+ mux_data = job->mux_data;
+ if( OGMFlush( m, mux_data ) < 0 )
+ {
+ return -1;
+ }
+ for( i = 0; i < hb_list_count( title->list_audio ); i++ )
+ {
+ audio = hb_list_item( title->list_audio, i );
+ mux_data = audio->mux_data;
+ if( OGMFlush( m, mux_data ) < 0 )
+ {
+ return -1;
+ }
+ }
+
+ fclose( m->file );
+ hb_log( "muxogm: `%s' closed", job->file );
+
+ return 0;
+}
+
+hb_mux_object_t * hb_mux_ogm_init( hb_job_t * job )
+{
+ hb_mux_object_t * m = calloc( sizeof( hb_mux_object_t ), 1 );
+ m->init = OGMInit;
+ m->mux = OGMMux;
+ m->end = OGMEnd;
+ m->job = job;
+ return m;
+}
+
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