* Copyright (C) 2003-2004 Ushodaya Enterprises Limited
* Author: Charles Yates <charles.yates@pandora.be>
*
- * 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 library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This program is distributed in the hope that it will be useful,
+ * This library 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
- * GNU General Public License for more details.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-// Local header files
-#include "producer_avformat.h"
-
// MLT Header files
+#include <framework/mlt_producer.h>
#include <framework/mlt_frame.h>
// ffmpeg Header files
#include <avformat.h>
+#ifdef SWSCALE
+#include <swscale.h>
+#endif
// System header files
#include <stdlib.h>
void avformat_unlock( );
// Forward references.
-static int producer_open( mlt_producer this, char *file );
+static int producer_open( mlt_producer this, mlt_profile profile, char *file );
static int producer_get_frame( mlt_producer this, mlt_frame_ptr frame, int index );
/** Constructor for libavformat.
*/
-mlt_producer producer_avformat_init( char *file )
+mlt_producer producer_avformat_init( mlt_profile profile, char *file )
{
mlt_producer this = NULL;
this->get_frame = producer_get_frame;
// Open the file
- if ( producer_open( this, file ) != 0 )
+ if ( producer_open( this, profile, file ) != 0 )
{
// Clean up
mlt_producer_close( this );
/** Open the file.
*/
-static int producer_open( mlt_producer this, char *file )
+static int producer_open( mlt_producer this, mlt_profile profile, char *file )
{
// Return an error code (0 == no error)
int error = 0;
mlt_properties properties = MLT_PRODUCER_PROPERTIES( this );
// We will treat everything with the producer fps
- double fps = mlt_properties_get_double( properties, "fps" );
+ double fps = mlt_profile_fps( profile );
// Lock the mutex now
avformat_lock( );
params->width = 640;
params->height = 480;
params->time_base= (AVRational){1,25};
- params->device = file;
+ // params->device = file;
params->channels = 2;
params->sample_rate = 48000;
}
+ // XXX: this does not work anymore since avdevice
+ // TODO: make producer_avddevice?
// Parse out params
mrl = strchr( file, '?' );
while ( mrl )
if ( context->duration != AV_NOPTS_VALUE )
{
// This isn't going to be accurate for all formats
- mlt_position frames = ( mlt_position )( ( ( double )context->duration / ( double )AV_TIME_BASE ) * fps );
- mlt_properties_set_position( properties, "out", frames - 2 );
- mlt_properties_set_position( properties, "length", frames - 1 );
+ mlt_position frames = ( mlt_position )( ( ( double )context->duration / ( double )AV_TIME_BASE ) * fps + 0.5 );
+ mlt_properties_set_position( properties, "out", frames - 1 );
+ mlt_properties_set_position( properties, "length", frames );
}
// Find default audio and video streams
// Check if we're seekable (something funny about mpeg here :-/)
if ( strcmp( file, "pipe:" ) && strncmp( file, "http://", 6 ) )
+ {
mlt_properties_set_int( properties, "seekable", av_seek_frame( context, -1, mlt_properties_get_double( properties, "_start_time" ), AVSEEK_FLAG_BACKWARD ) >= 0 );
+ mlt_properties_set_data( properties, "dummy_context", context, 0, producer_file_close, NULL );
+ av_open_input_file( &context, file, NULL, 0, NULL );
+ av_find_stream_info( context );
+ }
else
av_bypass = 1;
{
// We'll use the open one as our video_context
mlt_properties_set_data( properties, "video_context", context, 0, producer_file_close, NULL );
- av_seek_frame( context, -1, 0, AVSEEK_FLAG_BACKWARD );
// And open again for our audio context
av_open_input_file( &context, file, NULL, 0, NULL );
{
// We only have a video context
mlt_properties_set_data( properties, "video_context", context, 0, producer_file_close, NULL );
- av_seek_frame( context, -1, 0, AVSEEK_FLAG_BACKWARD );
}
else if ( audio_index != -1 )
{
static double producer_time_of_frame( mlt_producer this, mlt_position position )
{
- // Get the properties
- mlt_properties properties = MLT_PRODUCER_PROPERTIES( this );
-
- // Obtain the fps
- double fps = mlt_properties_get_double( properties, "fps" );
-
- // Do the calc
- return ( double )position / fps;
+ return ( double )position / mlt_producer_get_fps( this );
}
static inline void convert_image( AVFrame *frame, uint8_t *buffer, int pix_fmt, mlt_image_format format, int width, int height )
{
+#ifdef SWSCALE
+ if ( format == mlt_image_yuv420p )
+ {
+ struct SwsContext *context = sws_getContext( width, height, pix_fmt,
+ width, height, PIX_FMT_YUV420P, SWS_FAST_BILINEAR, NULL, NULL, NULL);
+ AVPicture output;
+ output.data[0] = buffer;
+ output.data[1] = buffer + width * height;
+ output.data[2] = buffer + ( 3 * width * height ) / 2;
+ output.linesize[0] = width;
+ output.linesize[1] = width >> 1;
+ output.linesize[2] = width >> 1;
+ sws_scale( context, frame->data, frame->linesize, 0, height,
+ output.data, output.linesize);
+ sws_freeContext( context );
+ }
+ else if ( format == mlt_image_rgb24 )
+ {
+ struct SwsContext *context = sws_getContext( width, height, pix_fmt,
+ width, height, PIX_FMT_RGB24, SWS_FAST_BILINEAR, NULL, NULL, NULL);
+ AVPicture output;
+ avpicture_fill( &output, buffer, PIX_FMT_RGB24, width, height );
+ sws_scale( context, frame->data, frame->linesize, 0, height,
+ output.data, output.linesize);
+ sws_freeContext( context );
+ }
+ else
+ {
+ struct SwsContext *context = sws_getContext( width, height, pix_fmt,
+ width, height, PIX_FMT_YUYV422, SWS_FAST_BILINEAR, NULL, NULL, NULL);
+ AVPicture output;
+ avpicture_fill( &output, buffer, PIX_FMT_YUYV422, width, height );
+ sws_scale( context, frame->data, frame->linesize, 0, height,
+ output.data, output.linesize);
+ sws_freeContext( context );
+ }
+#else
if ( format == mlt_image_yuv420p )
{
AVPicture pict;
avpicture_fill( &output, buffer, PIX_FMT_YUV422, width, height );
img_convert( &output, PIX_FMT_YUV422, (AVPicture *)frame, pix_fmt, width, height );
}
+#endif
}
/** Get an image from a frame.
// Obtain the expected frame numer
mlt_position expected = mlt_properties_get_position( properties, "_video_expected" );
- // Calculate the real time code
- double real_timecode = producer_time_of_frame( this, position );
-
// Get the video stream
AVStream *stream = context->streams[ index ];
// Special case ffwd handling
int ignore = 0;
- // Current time calcs
- int current_position = mlt_properties_get_double( properties, "_current_position" );
-
// We may want to use the source fps if available
double source_fps = mlt_properties_get_double( properties, "source_fps" );
- double fps = mlt_properties_get_double( properties, "fps" );
+ double fps = mlt_producer_get_fps( this );
// This is the physical frame position in the source
- int req_position = ( int )( position / fps * source_fps );
+ int req_position = ( int )( position / fps * source_fps + 0.5 );
// Get the seekable status
int seekable = mlt_properties_get_int( properties, "seekable" );
else if ( seekable && ( position < expected || position - expected >= 12 ) )
{
// Calculate the timestamp for the requested frame
- int64_t timestamp = ( int64_t )( ( double )req_position / source_fps * AV_TIME_BASE );
+ int64_t timestamp = ( int64_t )( ( double )req_position / source_fps * AV_TIME_BASE + 0.5 );
if ( ( uint64_t )context->start_time != AV_NOPTS_VALUE )
timestamp += context->start_time;
if ( must_decode )
}
// Duplicate the last image if necessary (see comment on rawvideo below)
- if ( av_frame != NULL && ( paused || mlt_properties_get_int( properties, "_current_position" ) >= req_position ) && av_bypass == 0 )
+ int current_position = mlt_properties_get_int( properties, "_current_position" );
+ int got_picture = mlt_properties_get_int( properties, "_got_picture" );
+ if ( av_frame != NULL && got_picture && ( paused || current_position >= req_position ) && av_bypass == 0 )
{
// Duplicate it
convert_image( av_frame, *buffer, codec_context->pix_fmt, *format, *width, *height );
else
{
int ret = 0;
- int got_picture = 0;
int int_position = 0;
+ got_picture = 0;
av_init_packet( &pkt );
if ( ret >= 0 && pkt.stream_index == index && pkt.size > 0 )
{
// Determine time code of the packet
- int_position = ( int )( av_q2d( stream->time_base ) * pkt.dts * source_fps );
+ int_position = ( int )( av_q2d( stream->time_base ) * pkt.dts * source_fps + 0.5 );
if ( context->start_time != AV_NOPTS_VALUE )
- int_position -= ( int )( context->start_time * source_fps / AV_TIME_BASE );
-
+ int_position -= ( int )( context->start_time * source_fps / AV_TIME_BASE + 0.5 );
int last_position = mlt_properties_get_int( properties, "_last_position" );
if ( int_position == last_position )
int_position = last_position + 1;
got_picture = 0;
}
}
+ av_free_packet( &pkt );
+ }
+ else if ( ret >= 0 )
+ {
+ av_free_packet( &pkt );
}
// Now handle the picture if we have one
mlt_properties_set_int( frame_properties, "top_field_first", av_frame->top_field_first );
convert_image( av_frame, *buffer, codec_context->pix_fmt, *format, *width, *height );
mlt_properties_set_data( frame_properties, "image", *buffer, size, (mlt_destructor)mlt_pool_release, NULL );
- mlt_properties_set_double( properties, "_current_position", int_position );
+ mlt_properties_set_int( properties, "_current_position", int_position );
+ mlt_properties_set_int( properties, "_got_picture", 1 );
}
-
- // We're finished with this packet regardless
- av_free_packet( &pkt );
}
}
}
else
{
- int is_pal = mlt_properties_get_double( properties, "fps" ) == 25.0;
+ int is_pal = mlt_producer_get_fps( this ) == 25.0;
aspect_ratio = is_pal ? 59.0/54.0 : 10.0/11.0;
}
source_fps = ( double )codec_context->time_base.den / ( codec_context->time_base.num == 0 ? 1 : codec_context->time_base.num );
// We'll use fps if it's available
- if ( source_fps > 0 && source_fps < 30 )
+ if ( source_fps > 0 )
mlt_properties_set_double( properties, "source_fps", source_fps );
else
- mlt_properties_set_double( properties, "source_fps", mlt_properties_get_double( properties, "fps" ) );
+ mlt_properties_set_double( properties, "source_fps", mlt_producer_get_fps( this ) );
mlt_properties_set_double( properties, "aspect_ratio", aspect_ratio );
// Set the width and height
{
int ret = 0;
int got_audio = 0;
- int16_t *temp = mlt_pool_alloc( sizeof( int16_t ) * AVCODEC_MAX_AUDIO_FRAME_SIZE );
+ int16_t *temp = av_malloc( sizeof( int16_t ) * AVCODEC_MAX_AUDIO_FRAME_SIZE );
av_init_packet( &pkt );
// Read a packet
ret = av_read_frame( context, &pkt );
- int len = pkt.size;
- uint8_t *ptr = pkt.data;
- int data_size;
+ int len = pkt.size;
+ uint8_t *ptr = pkt.data;
// We only deal with audio from the selected audio_index
while ( ptr != NULL && ret >= 0 && pkt.stream_index == index && len > 0 )
{
+ int data_size = sizeof( int16_t ) * AVCODEC_MAX_AUDIO_FRAME_SIZE;
+
// Decode the audio
+#if (LIBAVCODEC_VERSION_INT >= ((51<<16)+(29<<8)+0))
+ ret = avcodec_decode_audio2( codec_context, temp, &data_size, ptr, len );
+#else
ret = avcodec_decode_audio( codec_context, temp, &data_size, ptr, len );
-
+#endif
if ( ret < 0 )
{
ret = 0;
mlt_properties_set_int( properties, "_audio_used", audio_used );
// Release the temporary audio
- mlt_pool_release( temp );
+ av_free( temp );
}
else
{
static int producer_get_frame( mlt_producer this, mlt_frame_ptr frame, int index )
{
// Create an empty frame
- *frame = mlt_frame_init( );
+ *frame = mlt_frame_init( MLT_PRODUCER_SERVICE( this ) );
// Update timecode on the frame we're creating
mlt_frame_set_position( *frame, mlt_producer_position( this ) );
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