/*****************************************************************************
* theora.c: theora decoder module making use of libtheora.
*****************************************************************************
- * Copyright (C) 1999-2001 VideoLAN
- * $Id: theora.c,v 1.6 2003/09/02 20:19:25 gbazin Exp $
+ * Copyright (C) 1999-2001 the VideoLAN team
+ * $Id$
*
- * Authors: Gildas Bazin <gbazin@netcourrier.com>
+ * Authors: Gildas Bazin <gbazin@videolan.org>
*
* 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
*
* 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, USA.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
-#include <stdlib.h> /* malloc(), free() */
-#include <string.h> /* memcpy(), memset() */
-
-#include <vlc/vlc.h>
-#include <vlc/vout.h>
-#include <vlc/decoder.h>
-#include <vlc/input.h>
-#include <vlc/sout.h>
-#include <input_ext-dec.h>
-
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <vlc_common.h>
+#include <vlc_plugin.h>
+#include <vlc_codec.h>
+#include <vlc_vout.h>
+#include <vlc_sout.h>
+#include <vlc_input.h>
#include <ogg/ogg.h>
#include <theora/theora.h>
struct decoder_sys_t
{
/* Module mode */
- vlc_bool_t b_packetizer;
+ bool b_packetizer;
/*
* Input properties
theora_state td; /* theora bitstream user comments */
/*
- * Output properties
+ * Decoding properties
*/
- vout_thread_t *p_vout;
-
- /*
- * Packetizer output properties
- */
- sout_packetizer_input_t *p_sout_input;
- sout_format_t sout_format;
+ bool b_decoded_first_keyframe;
/*
* Common properties
/*****************************************************************************
* Local prototypes
*****************************************************************************/
-static int OpenDecoder ( vlc_object_t * );
-static int OpenPacketizer( vlc_object_t * );
+static int OpenDecoder ( vlc_object_t * );
+static int OpenPacketizer( vlc_object_t * );
+static void CloseDecoder ( vlc_object_t * );
-static int InitDecoder ( decoder_t * );
-static int RunDecoder ( decoder_t *, block_t * );
-static int EndDecoder ( decoder_t * );
+static void *DecodeBlock ( decoder_t *, block_t ** );
+static int ProcessHeaders( decoder_t * );
+static void *ProcessPacket ( decoder_t *, ogg_packet *, block_t ** );
-static int ProcessPacket ( decoder_t *, ogg_packet *, mtime_t );
-static int DecodePacket ( decoder_t *, ogg_packet * );
-static int SendPacket ( decoder_t *, ogg_packet * );
+static picture_t *DecodePacket( decoder_t *, ogg_packet * );
static void ParseTheoraComments( decoder_t * );
-
static void theora_CopyPicture( decoder_t *, picture_t *, yuv_buffer * );
+static int OpenEncoder( vlc_object_t *p_this );
+static void CloseEncoder( vlc_object_t *p_this );
+static block_t *Encode( encoder_t *p_enc, picture_t *p_pict );
+
/*****************************************************************************
* Module descriptor
*****************************************************************************/
+#define ENC_QUALITY_TEXT N_("Encoding quality")
+#define ENC_QUALITY_LONGTEXT N_( \
+ "Enforce a quality between 1 (low) and 10 (high), instead " \
+ "of specifying a particular bitrate. This will produce a VBR stream." )
+
vlc_module_begin();
- set_description( _("Theora video decoder") );
+ set_category( CAT_INPUT );
+ set_subcategory( SUBCAT_INPUT_VCODEC );
+ set_shortname( "Theora" );
+ set_description( N_("Theora video decoder") );
set_capability( "decoder", 100 );
- set_callbacks( OpenDecoder, NULL );
+ set_callbacks( OpenDecoder, CloseDecoder );
add_shortcut( "theora" );
add_submodule();
- set_description( _("Theora video packetizer") );
+ set_description( N_("Theora video packetizer") );
set_capability( "packetizer", 100 );
- set_callbacks( OpenPacketizer, NULL );
- add_shortcut( "theora" );
+ set_callbacks( OpenPacketizer, CloseDecoder );
+
+ add_submodule();
+ set_description( N_("Theora video encoder") );
+ set_capability( "encoder", 150 );
+ set_callbacks( OpenEncoder, CloseEncoder );
+
+# define ENC_CFG_PREFIX "sout-theora-"
+ add_integer( ENC_CFG_PREFIX "quality", 2, NULL, ENC_QUALITY_TEXT,
+ ENC_QUALITY_LONGTEXT, false );
vlc_module_end();
+static const char *const ppsz_enc_options[] = {
+ "quality", NULL
+};
+
/*****************************************************************************
* OpenDecoder: probe the decoder and return score
*****************************************************************************/
static int OpenDecoder( vlc_object_t *p_this )
{
decoder_t *p_dec = (decoder_t*)p_this;
+ decoder_sys_t *p_sys;
- if( p_dec->p_fifo->i_fourcc != VLC_FOURCC('t','h','e','o') )
+ if( p_dec->fmt_in.i_codec != VLC_FOURCC('t','h','e','o') )
{
return VLC_EGENERIC;
}
- p_dec->pf_init = InitDecoder;
- p_dec->pf_decode = RunDecoder;
- p_dec->pf_end = EndDecoder;
-
/* Allocate the memory needed to store the decoder's structure */
- if( ( p_dec->p_sys =
+ if( ( p_dec->p_sys = p_sys =
(decoder_sys_t *)malloc(sizeof(decoder_sys_t)) ) == NULL )
- {
- msg_Err( p_dec, "out of memory" );
- return VLC_EGENERIC;
- }
- p_dec->p_sys->b_packetizer = VLC_FALSE;
+ return VLC_ENOMEM;
+ p_dec->p_sys->b_packetizer = false;
+
+ p_sys->i_pts = 0;
+ p_sys->b_decoded_first_keyframe = false;
+
+ /* Set output properties */
+ p_dec->fmt_out.i_cat = VIDEO_ES;
+ p_dec->fmt_out.i_codec = VLC_FOURCC('I','4','2','0');
+
+ /* Set callbacks */
+ p_dec->pf_decode_video = (picture_t *(*)(decoder_t *, block_t **))
+ DecodeBlock;
+ p_dec->pf_packetize = (block_t *(*)(decoder_t *, block_t **))
+ DecodeBlock;
+
+ /* Init supporting Theora structures needed in header parsing */
+ theora_comment_init( &p_sys->tc );
+ theora_info_init( &p_sys->ti );
+
+ p_sys->i_headers = 0;
return VLC_SUCCESS;
}
int i_ret = OpenDecoder( p_this );
- if( i_ret == VLC_SUCCESS ) p_dec->p_sys->b_packetizer = VLC_TRUE;
+ if( i_ret == VLC_SUCCESS )
+ {
+ p_dec->p_sys->b_packetizer = true;
+ p_dec->fmt_out.i_codec = VLC_FOURCC( 't', 'h', 'e', 'o' );
+ }
return i_ret;
}
-/*****************************************************************************
- * InitDecoder: Initalize the decoder
- *****************************************************************************/
-static int InitDecoder( decoder_t *p_dec )
-{
- decoder_sys_t *p_sys = p_dec->p_sys;
-
- p_sys->i_pts = 0;
-
- p_sys->p_sout_input = NULL;
- p_sys->sout_format.i_cat = VIDEO_ES;
- p_sys->sout_format.i_fourcc = VLC_FOURCC( 't', 'h', 'e', 'o' );
- p_sys->sout_format.i_width = 0;
- p_sys->sout_format.i_height = 0;
- p_sys->sout_format.i_bitrate = 0;
- p_sys->sout_format.i_extra_data = 0;
- p_sys->sout_format.p_extra_data = NULL;
-
- /* Init supporting Theora structures needed in header parsing */
- theora_comment_init( &p_sys->tc );
- theora_info_init( &p_sys->ti );
-
- p_sys->i_headers = 0;
-
- return VLC_SUCCESS;
-}
-
/****************************************************************************
- * RunDecoder: the whole thing
+ * DecodeBlock: the whole thing
****************************************************************************
* This function must be fed with ogg packets.
****************************************************************************/
-static int RunDecoder( decoder_t *p_dec, block_t *p_block )
+static void *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
{
decoder_sys_t *p_sys = p_dec->p_sys;
+ block_t *p_block;
ogg_packet oggpacket;
- int i_ret;
+
+ if( !pp_block || !*pp_block ) return NULL;
+
+ p_block = *pp_block;
/* Block to Ogg packet */
oggpacket.packet = p_block->p_buffer;
oggpacket.e_o_s = 0;
oggpacket.packetno = 0;
- if( p_sys->i_headers == 0 )
+ /* Check for headers */
+ if( p_sys->i_headers == 0 && p_dec->fmt_in.i_extra )
{
- /* Take care of the initial Theora header */
+ /* Headers already available as extra data */
+ p_sys->i_headers = 3;
+ }
+ else if( oggpacket.bytes && p_sys->i_headers < 3 )
+ {
+ /* Backup headers as extra data */
+ uint8_t *p_extra;
- oggpacket.b_o_s = 1; /* yes this actually is a b_o_s packet :) */
- if( theora_decode_header( &p_sys->ti, &p_sys->tc, &oggpacket ) < 0 )
- {
- msg_Err( p_dec->p_fifo, "This bitstream does not contain Theora "
- "video data" );
- block_Release( p_block );
- return VLC_EGENERIC;
- }
+ p_dec->fmt_in.p_extra =
+ realloc( p_dec->fmt_in.p_extra, p_dec->fmt_in.i_extra +
+ oggpacket.bytes + 2 );
+ p_extra = ((uint8_t *)p_dec->fmt_in.p_extra) + p_dec->fmt_in.i_extra;
+ *(p_extra++) = oggpacket.bytes >> 8;
+ *(p_extra++) = oggpacket.bytes & 0xFF;
+
+ memcpy( p_extra, oggpacket.packet, oggpacket.bytes );
+ p_dec->fmt_in.i_extra += oggpacket.bytes + 2;
+
+ block_Release( *pp_block );
p_sys->i_headers++;
+ return NULL;
+ }
-
- if( p_sys->b_packetizer )
- {
- /* add a input for the stream ouput */
- p_sys->sout_format.i_width = p_sys->ti.width;
- p_sys->sout_format.i_height = p_sys->ti.height;
-
- p_sys->p_sout_input =
- sout_InputNew( p_dec, &p_sys->sout_format );
-
- if( !p_sys->p_sout_input )
- {
- msg_Err( p_dec, "cannot add a new stream" );
- block_Release( p_block );
- return VLC_EGENERIC;
- }
- }
- else
+ if( p_sys->i_headers == 3 )
+ {
+ if( ProcessHeaders( p_dec ) != VLC_SUCCESS )
{
- /* Initialize video output */
- int i_chroma, i_aspect;
-
- if( p_sys->ti.aspect_denominator )
- i_aspect = VOUT_ASPECT_FACTOR * p_sys->ti.aspect_numerator /
- p_sys->ti.aspect_denominator;
- else
- i_aspect = VOUT_ASPECT_FACTOR *
- p_sys->ti.frame_width / p_sys->ti.frame_height;
-
- i_chroma = VLC_FOURCC('Y','V','1','2');
-
- p_sys->p_vout =
- vout_Request( p_dec, NULL,
- p_sys->ti.frame_width, p_sys->ti.frame_height,
- i_chroma, i_aspect );
- if( p_sys->p_vout == NULL )
- {
- msg_Err( p_dec, "failed to create video output" );
- block_Release( p_block );
- return VLC_EGENERIC;
- }
+ p_sys->i_headers = 0;
+ p_dec->fmt_in.i_extra = 0;
+ block_Release( *pp_block );
+ return NULL;
}
+ else p_sys->i_headers++;
+ }
- msg_Dbg( p_dec, "%dx%d %.02f fps video, frame content "
- "is %dx%d with offset (%d,%d)",
- p_sys->ti.width, p_sys->ti.height,
- (double)p_sys->ti.fps_numerator/p_sys->ti.fps_denominator,
- p_sys->ti.frame_width, p_sys->ti.frame_height,
- p_sys->ti.offset_x, p_sys->ti.offset_y );
+ return ProcessPacket( p_dec, &oggpacket, pp_block );
+}
- if( p_sys->b_packetizer )
- {
- i_ret = SendPacket( p_dec, &oggpacket );
- block_Release( p_block );
- return i_ret;
- }
- else
- {
- block_Release( p_block );
- return VLC_SUCCESS;
- }
+/*****************************************************************************
+ * ProcessHeaders: process Theora headers.
+ *****************************************************************************/
+static int ProcessHeaders( decoder_t *p_dec )
+{
+ decoder_sys_t *p_sys = p_dec->p_sys;
+ ogg_packet oggpacket;
+ uint8_t *p_extra;
+ int i_extra;
+
+ if( !p_dec->fmt_in.i_extra ) return VLC_EGENERIC;
+
+ oggpacket.granulepos = -1;
+ oggpacket.b_o_s = 1; /* yes this actually is a b_o_s packet :) */
+ oggpacket.e_o_s = 0;
+ oggpacket.packetno = 0;
+ p_extra = p_dec->fmt_in.p_extra;
+ i_extra = p_dec->fmt_in.i_extra;
+
+ /* Take care of the initial Vorbis header */
+ oggpacket.bytes = *(p_extra++) << 8;
+ oggpacket.bytes |= (*(p_extra++) & 0xFF);
+ oggpacket.packet = p_extra;
+ p_extra += oggpacket.bytes;
+ i_extra -= (oggpacket.bytes + 2);
+ if( i_extra < 0 )
+ {
+ msg_Err( p_dec, "header data corrupted");
+ return VLC_EGENERIC;
}
- if( p_sys->i_headers == 1 )
+ if( theora_decode_header( &p_sys->ti, &p_sys->tc, &oggpacket ) < 0 )
{
- /* The next packet in order is the comments header */
- if( theora_decode_header( &p_sys->ti, &p_sys->tc, &oggpacket ) < 0 )
- {
- msg_Err( p_dec, "2nd Theora header is corrupted" );
- return VLC_EGENERIC;
- }
- p_sys->i_headers++;
-
- ParseTheoraComments( p_dec );
+ msg_Err( p_dec, "this bitstream does not contain Theora video data" );
+ return VLC_EGENERIC;
+ }
- if( p_sys->b_packetizer )
- {
- i_ret = SendPacket( p_dec, &oggpacket );
- block_Release( p_block );
- return i_ret;
- }
- else
- {
- block_Release( p_block );
- return VLC_SUCCESS;
- }
+ /* Set output properties */
+ p_dec->fmt_out.video.i_width = p_sys->ti.width;
+ p_dec->fmt_out.video.i_height = p_sys->ti.height;
+ if( p_sys->ti.frame_width && p_sys->ti.frame_height )
+ {
+ p_dec->fmt_out.video.i_width = p_sys->ti.frame_width;
+ p_dec->fmt_out.video.i_height = p_sys->ti.frame_height;
}
- if( p_sys->i_headers == 2 )
+ if( p_sys->ti.aspect_denominator && p_sys->ti.aspect_numerator )
{
- /* The next packet in order is the codebooks header
- We need to watch out that this packet is not missing as a
- missing or corrupted header is fatal. */
- if( theora_decode_header( &p_sys->ti, &p_sys->tc, &oggpacket ) < 0 )
- {
- msg_Err( p_dec, "3rd Theora header is corrupted" );
- return VLC_EGENERIC;
- }
- p_sys->i_headers++;
-
- if( !p_sys->b_packetizer )
- {
- /* We have all the headers, initialize decoder */
- theora_decode_init( &p_sys->td, &p_sys->ti );
- }
+ p_dec->fmt_out.video.i_aspect = ((int64_t)VOUT_ASPECT_FACTOR) *
+ ( p_sys->ti.aspect_numerator * p_dec->fmt_out.video.i_width ) /
+ ( p_sys->ti.aspect_denominator * p_dec->fmt_out.video.i_height );
+ }
+ else
+ {
+ p_dec->fmt_out.video.i_aspect = VOUT_ASPECT_FACTOR *
+ p_sys->ti.frame_width / p_sys->ti.frame_height;
+ }
- if( p_sys->b_packetizer )
- {
- i_ret = SendPacket( p_dec, &oggpacket );
- block_Release( p_block );
- return i_ret;
- }
- else
- {
- block_Release( p_block );
- return VLC_SUCCESS;
- }
+ if( p_sys->ti.fps_numerator > 0 && p_sys->ti.fps_denominator > 0 )
+ {
+ p_dec->fmt_out.video.i_frame_rate = p_sys->ti.fps_numerator;
+ p_dec->fmt_out.video.i_frame_rate_base = p_sys->ti.fps_denominator;
}
- i_ret = ProcessPacket( p_dec, &oggpacket, p_block->i_pts );
- block_Release( p_block );
- return i_ret;
-}
+ msg_Dbg( p_dec, "%dx%d %.02f fps video, frame content "
+ "is %dx%d with offset (%d,%d)",
+ p_sys->ti.width, p_sys->ti.height,
+ (double)p_sys->ti.fps_numerator/p_sys->ti.fps_denominator,
+ p_sys->ti.frame_width, p_sys->ti.frame_height,
+ p_sys->ti.offset_x, p_sys->ti.offset_y );
-/*****************************************************************************
- * ProcessPacket: processes a Vorbis packet.
- *****************************************************************************/
-static int ProcessPacket( decoder_t *p_dec, ogg_packet *p_oggpacket,
- mtime_t i_pts )
-{
- decoder_sys_t *p_sys = p_dec->p_sys;
+ /* Sanity check that seems necessary for some corrupted files */
+ if( p_sys->ti.width < p_sys->ti.frame_width ||
+ p_sys->ti.height < p_sys->ti.frame_height )
+ {
+ msg_Warn( p_dec, "trying to correct invalid theora header "
+ "(frame size (%dx%d) is smaller than frame content (%d,%d))",
+ p_sys->ti.width, p_sys->ti.height,
+ p_sys->ti.frame_width, p_sys->ti.frame_height );
+
+ if( p_sys->ti.width < p_sys->ti.frame_width )
+ p_sys->ti.width = p_sys->ti.frame_width;
+ if( p_sys->ti.height < p_sys->ti.frame_height )
+ p_sys->ti.height = p_sys->ti.frame_height;
+ }
- /* Date management */
- if( i_pts > 0 && i_pts != p_sys->i_pts )
+ /* The next packet in order is the comments header */
+ oggpacket.b_o_s = 0;
+ oggpacket.bytes = *(p_extra++) << 8;
+ oggpacket.bytes |= (*(p_extra++) & 0xFF);
+ oggpacket.packet = p_extra;
+ p_extra += oggpacket.bytes;
+ i_extra -= (oggpacket.bytes + 2);
+ if( i_extra < 0 )
{
- p_sys->i_pts = i_pts;
+ msg_Err( p_dec, "header data corrupted");
+ return VLC_EGENERIC;
}
- if( p_sys->b_packetizer )
+ /* The next packet in order is the comments header */
+ if( theora_decode_header( &p_sys->ti, &p_sys->tc, &oggpacket ) < 0 )
{
- return SendPacket( p_dec, p_oggpacket );
+ msg_Err( p_dec, "2nd Theora header is corrupted" );
+ return VLC_EGENERIC;
+ }
+
+ ParseTheoraComments( p_dec );
+
+ /* The next packet in order is the codebooks header
+ * We need to watch out that this packet is not missing as a
+ * missing or corrupted header is fatal. */
+ oggpacket.bytes = *(p_extra++) << 8;
+ oggpacket.bytes |= (*(p_extra++) & 0xFF);
+ oggpacket.packet = p_extra;
+ i_extra -= (oggpacket.bytes + 2);
+ if( i_extra < 0 )
+ {
+ msg_Err( p_dec, "header data corrupted");
+ return VLC_EGENERIC;
+ }
+
+ /* The next packet in order is the codebooks header
+ * We need to watch out that this packet is not missing as a
+ * missing or corrupted header is fatal */
+ if( theora_decode_header( &p_sys->ti, &p_sys->tc, &oggpacket ) < 0 )
+ {
+ msg_Err( p_dec, "3rd Theora header is corrupted" );
+ return VLC_EGENERIC;
+ }
+
+ if( !p_sys->b_packetizer )
+ {
+ /* We have all the headers, initialize decoder */
+ theora_decode_init( &p_sys->td, &p_sys->ti );
}
else
{
- return DecodePacket( p_dec, p_oggpacket );
+ p_dec->fmt_out.i_extra = p_dec->fmt_in.i_extra;
+ p_dec->fmt_out.p_extra =
+ realloc( p_dec->fmt_out.p_extra, p_dec->fmt_out.i_extra );
+ memcpy( p_dec->fmt_out.p_extra,
+ p_dec->fmt_in.p_extra, p_dec->fmt_out.i_extra );
}
+
+ return VLC_SUCCESS;
}
/*****************************************************************************
- * DecodePacket: decodes a Theora packet.
+ * ProcessPacket: processes a theora packet.
*****************************************************************************/
-static int DecodePacket( decoder_t *p_dec, ogg_packet *p_oggpacket )
+static void *ProcessPacket( decoder_t *p_dec, ogg_packet *p_oggpacket,
+ block_t **pp_block )
{
- picture_t *p_pic;
- yuv_buffer yuv;
-
decoder_sys_t *p_sys = p_dec->p_sys;
+ block_t *p_block = *pp_block;
+ void *p_buf;
- theora_decode_packetin( &p_sys->td, p_oggpacket );
-
- /* Decode */
- theora_decode_YUVout( &p_sys->td, &yuv );
+ if( ( p_block->i_flags&(BLOCK_FLAG_DISCONTINUITY|BLOCK_FLAG_CORRUPTED) ) != 0 )
+ {
+ /* Don't send the the first packet after a discontinuity to
+ * theora_decode, otherwise we get purple/green display artifacts
+ * appearing in the video output */
+ return NULL;
+ }
- /* Get a new picture */
- while( !(p_pic = vout_CreatePicture( p_sys->p_vout, 0, 0, 0 ) ) )
+ /* Date management */
+ if( p_block->i_pts > 0 && p_block->i_pts != p_sys->i_pts )
{
- if( p_dec->p_fifo->b_die || p_dec->p_fifo->b_error )
- {
- return VLC_EGENERIC;
- }
- msleep( VOUT_OUTMEM_SLEEP );
+ p_sys->i_pts = p_block->i_pts;
}
- if( !p_pic ) return VLC_EGENERIC;
- theora_CopyPicture( p_dec, p_pic, &yuv );
+ *pp_block = NULL; /* To avoid being fed the same packet again */
+
+ if( p_sys->b_packetizer )
+ {
+ /* Date management */
+ p_block->i_dts = p_block->i_pts = p_sys->i_pts;
+
+ if( p_sys->i_headers >= 3 )
+ p_block->i_length = p_sys->i_pts - p_block->i_pts;
+ else
+ p_block->i_length = 0;
+
+ p_buf = p_block;
+ }
+ else
+ {
+ if( p_sys->i_headers >= 3 )
+ p_buf = DecodePacket( p_dec, p_oggpacket );
+ else
+ p_buf = NULL;
- vout_DatePicture( p_sys->p_vout, p_pic, p_sys->i_pts );
- vout_DisplayPicture( p_sys->p_vout, p_pic );
+ if( p_block ) block_Release( p_block );
+ }
/* Date management */
- p_sys->i_pts += ( 1000000 * p_sys->ti.fps_numerator /
- p_sys->ti.fps_denominator ); /* 1 frame per packet */
+ p_sys->i_pts += ( INT64_C(1000000) * p_sys->ti.fps_denominator /
+ p_sys->ti.fps_numerator ); /* 1 frame per packet */
- return VLC_SUCCESS;
+ return p_buf;
}
/*****************************************************************************
- * SendPacket: send an ogg packet to the stream output.
+ * DecodePacket: decodes a Theora packet.
*****************************************************************************/
-static int SendPacket( decoder_t *p_dec, ogg_packet *p_oggpacket )
+static picture_t *DecodePacket( decoder_t *p_dec, ogg_packet *p_oggpacket )
{
decoder_sys_t *p_sys = p_dec->p_sys;
+ picture_t *p_pic;
+ yuv_buffer yuv;
- sout_buffer_t *p_sout_buffer =
- sout_BufferNew( p_sys->p_sout_input->p_sout, p_oggpacket->bytes );
-
- if( !p_sout_buffer ) return VLC_EGENERIC;
+ theora_decode_packetin( &p_sys->td, p_oggpacket );
- p_dec->p_vlc->pf_memcpy( p_sout_buffer->p_buffer,
- p_oggpacket->packet,
- p_oggpacket->bytes );
+ /* Check for keyframe */
+ if( !(p_oggpacket->packet[0] & 0x80) /* data packet */ &&
+ !(p_oggpacket->packet[0] & 0x40) /* intra frame */ )
+ p_sys->b_decoded_first_keyframe = true;
+
+ /* If we haven't seen a single keyframe yet, don't let Theora decode
+ * anything, otherwise we'll get display artifacts. (This is impossible
+ * in the general case, but can happen if e.g. we play a network stream
+ * using a timed URL, such that the server doesn't start the video with a
+ * keyframe). */
+ if( p_sys->b_decoded_first_keyframe )
+ theora_decode_YUVout( &p_sys->td, &yuv );
+ else
+ return NULL;
- /* Date management */
- p_sout_buffer->i_dts = p_sout_buffer->i_pts = p_sys->i_pts;
- p_sys->i_pts += ( 1000000 * p_sys->ti.fps_numerator /
- p_sys->ti.fps_denominator ); /* 1 frame per packet */
+ /* Get a new picture */
+ p_pic = p_dec->pf_vout_buffer_new( p_dec );
+ if( !p_pic ) return NULL;
- if( p_sys->i_headers >= 3 )
- p_sout_buffer->i_length = p_sys->i_pts - p_sout_buffer->i_pts;
- else
- p_sout_buffer->i_length = 0;
+ theora_CopyPicture( p_dec, p_pic, &yuv );
- sout_InputSendBuffer( p_sys->p_sout_input, p_sout_buffer );
+ p_pic->date = p_sys->i_pts;
- return VLC_SUCCESS;
+ return p_pic;
}
/*****************************************************************************
static void ParseTheoraComments( decoder_t *p_dec )
{
input_thread_t *p_input = (input_thread_t *)p_dec->p_parent;
- input_info_category_t *p_cat =
- input_InfoCategory( p_input, _("Theora Comment") );
- int i = 0;
char *psz_name, *psz_value, *psz_comment;
+ int i = 0;
+
+ if( p_input->i_object_type != VLC_OBJECT_INPUT ) return;
+
while ( i < p_dec->p_sys->tc.comments )
{
psz_comment = strdup( p_dec->p_sys->tc.user_comments[i] );
if( !psz_comment )
{
- msg_Warn( p_dec, "Out of memory" );
+ msg_Warn( p_dec, "out of memory" );
break;
}
psz_name = psz_comment;
{
*psz_value = '\0';
psz_value++;
- input_AddInfo( p_cat, psz_name, psz_value );
+ input_Control( p_input, INPUT_ADD_INFO, _("Theora comment"),
+ psz_name, "%s", psz_value );
}
free( psz_comment );
i++;
}
/*****************************************************************************
- * EndDecoder: theora decoder destruction
+ * CloseDecoder: theora decoder destruction
*****************************************************************************/
-static int EndDecoder( decoder_t *p_dec )
+static void CloseDecoder( vlc_object_t *p_this )
{
+ decoder_t *p_dec = (decoder_t *)p_this;
decoder_sys_t *p_sys = p_dec->p_sys;
- if( !p_sys->b_packetizer )
- vout_Request( p_dec, p_sys->p_vout, 0, 0, 0, 0 );
-
theora_info_clear( &p_sys->ti );
theora_comment_clear( &p_sys->tc );
free( p_sys );
-
- return VLC_SUCCESS;
}
/*****************************************************************************
{
int i_plane, i_line, i_width, i_dst_stride, i_src_stride;
int i_src_xoffset, i_src_yoffset;
- u8 *p_dst, *p_src;
+ uint8_t *p_dst, *p_src;
for( i_plane = 0; i_plane < p_pic->i_planes; i_plane++ )
{
{
i_src_xoffset /= 2;
i_src_yoffset /= 2;
- }
+ }
- p_src += (i_src_yoffset * i_src_stride + i_src_yoffset);
+ p_src += (i_src_yoffset * i_src_stride + i_src_xoffset);
- for( i_line = 0; i_line < p_pic->p[i_plane].i_lines; i_line++ )
+ for( i_line = 0; i_line < p_pic->p[i_plane].i_visible_lines; i_line++ )
{
- p_dec->p_vlc->pf_memcpy( p_dst, p_src, i_width );
+ vlc_memcpy( p_dst, p_src + i_src_xoffset,
+ i_plane ? yuv->uv_width : yuv->y_width );
p_src += i_src_stride;
p_dst += i_dst_stride;
}
}
}
+
+/*****************************************************************************
+ * encoder_sys_t : theora encoder descriptor
+ *****************************************************************************/
+struct encoder_sys_t
+{
+ /*
+ * Input properties
+ */
+ bool b_headers;
+
+ /*
+ * Theora properties
+ */
+ theora_info ti; /* theora bitstream settings */
+ theora_comment tc; /* theora comment header */
+ theora_state td; /* theora bitstream user comments */
+
+ int i_width, i_height;
+};
+
+/*****************************************************************************
+ * OpenEncoder: probe the encoder and return score
+ *****************************************************************************/
+static int OpenEncoder( vlc_object_t *p_this )
+{
+ encoder_t *p_enc = (encoder_t *)p_this;
+ encoder_sys_t *p_sys = p_enc->p_sys;
+ ogg_packet header;
+ uint8_t *p_extra;
+ vlc_value_t val;
+ int i_quality, i;
+
+ if( p_enc->fmt_out.i_codec != VLC_FOURCC('t','h','e','o') &&
+ !p_enc->b_force )
+ {
+ return VLC_EGENERIC;
+ }
+
+ /* Allocate the memory needed to store the decoder's structure */
+ if( ( p_sys = (encoder_sys_t *)malloc(sizeof(encoder_sys_t)) ) == NULL )
+ return VLC_ENOMEM;
+ p_enc->p_sys = p_sys;
+
+ p_enc->pf_encode_video = Encode;
+ p_enc->fmt_in.i_codec = VLC_FOURCC('I','4','2','0');
+ p_enc->fmt_out.i_codec = VLC_FOURCC('t','h','e','o');
+
+ config_ChainParse( p_enc, ENC_CFG_PREFIX, ppsz_enc_options, p_enc->p_cfg );
+
+ var_Get( p_enc, ENC_CFG_PREFIX "quality", &val );
+ i_quality = val.i_int;
+ if( i_quality > 10 ) i_quality = 10;
+ if( i_quality < 0 ) i_quality = 0;
+
+ theora_info_init( &p_sys->ti );
+
+ p_sys->ti.width = p_enc->fmt_in.video.i_width;
+ p_sys->ti.height = p_enc->fmt_in.video.i_height;
+
+ if( p_sys->ti.width % 16 || p_sys->ti.height % 16 )
+ {
+ /* Pictures from the transcoder should always have a pitch
+ * which is a multiple of 16 */
+ p_sys->ti.width = (p_sys->ti.width + 15) >> 4 << 4;
+ p_sys->ti.height = (p_sys->ti.height + 15) >> 4 << 4;
+
+ msg_Dbg( p_enc, "padding video from %dx%d to %dx%d",
+ p_enc->fmt_in.video.i_width, p_enc->fmt_in.video.i_height,
+ p_sys->ti.width, p_sys->ti.height );
+ }
+
+ p_sys->ti.frame_width = p_enc->fmt_in.video.i_width;
+ p_sys->ti.frame_height = p_enc->fmt_in.video.i_height;
+ p_sys->ti.offset_x = 0 /*frame_x_offset*/;
+ p_sys->ti.offset_y = 0 /*frame_y_offset*/;
+
+ p_sys->i_width = p_sys->ti.width;
+ p_sys->i_height = p_sys->ti.height;
+
+ if( !p_enc->fmt_in.video.i_frame_rate ||
+ !p_enc->fmt_in.video.i_frame_rate_base )
+ {
+ p_sys->ti.fps_numerator = 25;
+ p_sys->ti.fps_denominator = 1;
+ }
+ else
+ {
+ p_sys->ti.fps_numerator = p_enc->fmt_in.video.i_frame_rate;
+ p_sys->ti.fps_denominator = p_enc->fmt_in.video.i_frame_rate_base;
+ }
+
+ if( p_enc->fmt_in.video.i_aspect )
+ {
+ uint64_t i_num, i_den;
+ unsigned i_dst_num, i_dst_den;
+
+ i_num = p_enc->fmt_in.video.i_aspect * (int64_t)p_sys->ti.height;
+ i_den = VOUT_ASPECT_FACTOR * p_sys->ti.width;
+ vlc_ureduce( &i_dst_num, &i_dst_den, i_num, i_den, 0 );
+ p_sys->ti.aspect_numerator = i_dst_num;
+ p_sys->ti.aspect_denominator = i_dst_den;
+ }
+ else
+ {
+ p_sys->ti.aspect_numerator = 4;
+ p_sys->ti.aspect_denominator = 3;
+ }
+
+ p_sys->ti.target_bitrate = p_enc->fmt_out.i_bitrate;
+ p_sys->ti.quality = ((float)i_quality) * 6.3;
+
+ p_sys->ti.dropframes_p = 0;
+ p_sys->ti.quick_p = 1;
+ p_sys->ti.keyframe_auto_p = 1;
+ p_sys->ti.keyframe_frequency = 64;
+ p_sys->ti.keyframe_frequency_force = 64;
+ p_sys->ti.keyframe_data_target_bitrate = p_enc->fmt_out.i_bitrate * 1.5;
+ p_sys->ti.keyframe_auto_threshold = 80;
+ p_sys->ti.keyframe_mindistance = 8;
+ p_sys->ti.noise_sensitivity = 1;
+
+ theora_encode_init( &p_sys->td, &p_sys->ti );
+ theora_info_clear( &p_sys->ti );
+ theora_comment_init( &p_sys->tc );
+
+ /* Create and store headers */
+ p_enc->fmt_out.i_extra = 3 * 2;
+ for( i = 0; i < 3; i++ )
+ {
+ if( i == 0 ) theora_encode_header( &p_sys->td, &header );
+ else if( i == 1 ) theora_encode_comment( &p_sys->tc, &header );
+ else if( i == 2 ) theora_encode_tables( &p_sys->td, &header );
+
+ p_enc->fmt_out.p_extra =
+ realloc( p_enc->fmt_out.p_extra,
+ p_enc->fmt_out.i_extra + header.bytes );
+ p_extra = p_enc->fmt_out.p_extra;
+ p_extra += p_enc->fmt_out.i_extra + (i-3)*2;
+ p_enc->fmt_out.i_extra += header.bytes;
+
+ *(p_extra++) = header.bytes >> 8;
+ *(p_extra++) = header.bytes & 0xFF;
+
+ memcpy( p_extra, header.packet, header.bytes );
+ }
+
+ return VLC_SUCCESS;
+}
+
+/****************************************************************************
+ * Encode: the whole thing
+ ****************************************************************************
+ * This function spits out ogg packets.
+ ****************************************************************************/
+static block_t *Encode( encoder_t *p_enc, picture_t *p_pict )
+{
+ encoder_sys_t *p_sys = p_enc->p_sys;
+ ogg_packet oggpacket;
+ block_t *p_block;
+ yuv_buffer yuv;
+ int i;
+
+ /* Sanity check */
+ if( p_pict->p[0].i_pitch < (int)p_sys->i_width ||
+ p_pict->p[0].i_lines < (int)p_sys->i_height )
+ {
+ msg_Warn( p_enc, "frame is smaller than encoding size"
+ "(%ix%i->%ix%i) -> dropping frame",
+ p_pict->p[0].i_pitch, p_pict->p[0].i_lines,
+ p_sys->i_width, p_sys->i_height );
+ return NULL;
+ }
+
+ /* Fill padding */
+ if( p_pict->p[0].i_visible_pitch < (int)p_sys->i_width )
+ {
+ for( i = 0; i < p_sys->i_height; i++ )
+ {
+ memset( p_pict->p[0].p_pixels + i * p_pict->p[0].i_pitch +
+ p_pict->p[0].i_visible_pitch,
+ *( p_pict->p[0].p_pixels + i * p_pict->p[0].i_pitch +
+ p_pict->p[0].i_visible_pitch - 1 ),
+ p_sys->i_width - p_pict->p[0].i_visible_pitch );
+ }
+ for( i = 0; i < p_sys->i_height / 2; i++ )
+ {
+ memset( p_pict->p[1].p_pixels + i * p_pict->p[1].i_pitch +
+ p_pict->p[1].i_visible_pitch,
+ *( p_pict->p[1].p_pixels + i * p_pict->p[1].i_pitch +
+ p_pict->p[1].i_visible_pitch - 1 ),
+ p_sys->i_width / 2 - p_pict->p[1].i_visible_pitch );
+ memset( p_pict->p[2].p_pixels + i * p_pict->p[2].i_pitch +
+ p_pict->p[2].i_visible_pitch,
+ *( p_pict->p[2].p_pixels + i * p_pict->p[2].i_pitch +
+ p_pict->p[2].i_visible_pitch - 1 ),
+ p_sys->i_width / 2 - p_pict->p[2].i_visible_pitch );
+ }
+ }
+
+ if( p_pict->p[0].i_visible_lines < (int)p_sys->i_height )
+ {
+ for( i = p_pict->p[0].i_visible_lines; i < p_sys->i_height; i++ )
+ {
+ memset( p_pict->p[0].p_pixels + i * p_pict->p[0].i_pitch, 0,
+ p_sys->i_width );
+ }
+ for( i = p_pict->p[1].i_visible_lines; i < p_sys->i_height / 2; i++ )
+ {
+ memset( p_pict->p[1].p_pixels + i * p_pict->p[1].i_pitch, 0x80,
+ p_sys->i_width / 2 );
+ memset( p_pict->p[2].p_pixels + i * p_pict->p[2].i_pitch, 0x80,
+ p_sys->i_width / 2 );
+ }
+ }
+
+ /* Theora is a one-frame-in, one-frame-out system. Submit a frame
+ * for compression and pull out the packet. */
+
+ yuv.y_width = p_sys->i_width;
+ yuv.y_height = p_sys->i_height;
+ yuv.y_stride = p_pict->p[0].i_pitch;
+
+ yuv.uv_width = p_sys->i_width / 2;
+ yuv.uv_height = p_sys->i_height / 2;
+ yuv.uv_stride = p_pict->p[1].i_pitch;
+
+ yuv.y = p_pict->p[0].p_pixels;
+ yuv.u = p_pict->p[1].p_pixels;
+ yuv.v = p_pict->p[2].p_pixels;
+
+ if( theora_encode_YUVin( &p_sys->td, &yuv ) < 0 )
+ {
+ msg_Warn( p_enc, "failed encoding a frame" );
+ return NULL;
+ }
+
+ theora_encode_packetout( &p_sys->td, 0, &oggpacket );
+
+ /* Ogg packet to block */
+ p_block = block_New( p_enc, oggpacket.bytes );
+ memcpy( p_block->p_buffer, oggpacket.packet, oggpacket.bytes );
+ p_block->i_dts = p_block->i_pts = p_pict->date;
+
+ return p_block;
+}
+
+/*****************************************************************************
+ * CloseEncoder: theora encoder destruction
+ *****************************************************************************/
+static void CloseEncoder( vlc_object_t *p_this )
+{
+ encoder_t *p_enc = (encoder_t *)p_this;
+ encoder_sys_t *p_sys = p_enc->p_sys;
+
+ theora_info_clear( &p_sys->ti );
+ theora_comment_clear( &p_sys->tc );
+
+ free( p_sys );
+}
projects / vlc / blobdiff