1 /*****************************************************************************
2 * encoder.c: video and audio encoder using the libavcodec library
3 *****************************************************************************
4 * Copyright (C) 1999-2004 VLC authors and VideoLAN
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8 * Gildas Bazin <gbazin@videolan.org>
9 * Christophe Massiot <massiot@via.ecp.fr>
10 * Part of the file Copyright (C) FFmpeg Project Developers
11 * (mpeg4_default matrixes)
13 * This program is free software; you can redistribute it and/or modify it
14 * under the terms of the GNU Lesser General Public License as published by
15 * the Free Software Foundation; either version 2.1 of the License, or
16 * (at your option) any later version.
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU Lesser General Public License for more details.
23 * You should have received a copy of the GNU Lesser General Public License
24 * along with this program; if not, write to the Free Software Foundation,
25 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
26 *****************************************************************************/
28 /*****************************************************************************
30 *****************************************************************************/
35 #include <vlc_common.h>
38 #include <vlc_codec.h>
39 #include <vlc_dialog.h>
40 #include <vlc_avcodec.h>
44 #include <libavcodec/avcodec.h>
49 #if LIBAVUTIL_VERSION_CHECK( 52,2,6,0,0 )
50 # include <libavutil/channel_layout.h>
53 #define HURRY_UP_GUARD1 (450000)
54 #define HURRY_UP_GUARD2 (300000)
55 #define HURRY_UP_GUARD3 (100000)
57 #define MAX_FRAME_DELAY (FF_MAX_B_FRAMES + 2)
59 #define RAW_AUDIO_FRAME_SIZE (2048)
61 /*****************************************************************************
63 *****************************************************************************/
64 int OpenEncoder ( vlc_object_t * );
65 void CloseEncoder( vlc_object_t * );
67 static block_t *EncodeVideo( encoder_t *, picture_t * );
68 static block_t *EncodeAudio( encoder_t *, block_t * );
70 struct thread_context_t;
72 /*****************************************************************************
73 * thread_context_t : for multithreaded encoding
74 *****************************************************************************/
75 struct thread_context_t
79 AVCodecContext *p_context;
80 int (* pf_func)(AVCodecContext *c, void *arg);
89 /*****************************************************************************
90 * encoder_sys_t : libavcodec encoder descriptor
91 *****************************************************************************/
95 * libavcodec properties
98 AVCodecContext *p_context;
101 * Common buffer mainly for audio as frame size in there needs usually be constant
105 uint8_t *p_interleave_buf;
110 mtime_t i_last_ref_pts;
111 mtime_t i_buggy_pts_detect;
118 size_t i_sample_bytes;
120 size_t i_samples_delay; //How much samples in delay buffer
122 bool b_variable; //Encoder can be fed with any size frames not just frame_size
126 /* Encoding settings */
133 int i_rc_buffer_size;
134 float f_rc_buffer_aggressivity;
137 bool b_interlace, b_interlace_me;
138 float f_i_quant_factor;
139 int i_noise_reduction;
142 int i_quality; /* for VBR */
143 float f_lumi_masking, f_dark_masking, f_p_masking, f_border_masking;
144 #if (LIBAVCODEC_VERSION_MAJOR < 55)
145 int i_luma_elim, i_chroma_elim;
147 int i_aac_profile; /* AAC profile to use.*/
152 static const char *const ppsz_enc_options[] = {
153 "keyint", "bframes", "vt", "qmin", "qmax", "codec", "hq",
154 "rc-buffer-size", "rc-buffer-aggressivity", "pre-me", "hurry-up",
155 "interlace", "interlace-me", "i-quant-factor", "noise-reduction", "mpeg4-matrix",
156 "trellis", "qscale", "strict", "lumi-masking", "dark-masking",
157 "p-masking", "border-masking",
158 #if (LIBAVCODEC_VERSION_MAJOR < 55)
159 "luma-elim-threshold", "chroma-elim-threshold",
161 "aac-profile", "options",
165 static const uint16_t mpa_bitrate_tab[2][15] =
167 {0, 32, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 384},
168 {0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160}
171 static const uint16_t mpa_freq_tab[6] =
172 { 44100, 48000, 32000, 22050, 24000, 16000 };
174 static const uint16_t mpeg4_default_intra_matrix[64] = {
175 8, 17, 18, 19, 21, 23, 25, 27,
176 17, 18, 19, 21, 23, 25, 27, 28,
177 20, 21, 22, 23, 24, 26, 28, 30,
178 21, 22, 23, 24, 26, 28, 30, 32,
179 22, 23, 24, 26, 28, 30, 32, 35,
180 23, 24, 26, 28, 30, 32, 35, 38,
181 25, 26, 28, 30, 32, 35, 38, 41,
182 27, 28, 30, 32, 35, 38, 41, 45,
185 static const uint16_t mpeg4_default_non_intra_matrix[64] = {
186 16, 17, 18, 19, 20, 21, 22, 23,
187 17, 18, 19, 20, 21, 22, 23, 24,
188 18, 19, 20, 21, 22, 23, 24, 25,
189 19, 20, 21, 22, 23, 24, 26, 27,
190 20, 21, 22, 23, 25, 26, 27, 28,
191 21, 22, 23, 24, 26, 27, 28, 30,
192 22, 23, 24, 26, 27, 28, 30, 31,
193 23, 24, 25, 27, 28, 30, 31, 33,
196 /*****************************************************************************
197 * OpenEncoder: probe the encoder
198 *****************************************************************************/
200 int OpenEncoder( vlc_object_t *p_this )
202 encoder_t *p_enc = (encoder_t *)p_this;
203 encoder_sys_t *p_sys;
204 AVCodecContext *p_context;
205 AVCodec *p_codec = NULL;
206 int i_codec_id, i_cat;
207 const char *psz_namecodec;
211 /* Initialization must be done before avcodec_find_encoder() */
214 config_ChainParse( p_enc, ENC_CFG_PREFIX, ppsz_enc_options, p_enc->p_cfg );
216 if( p_enc->fmt_out.i_codec == VLC_CODEC_MP3 )
219 i_codec_id = AV_CODEC_ID_MP3;
220 psz_namecodec = "MPEG I/II Layer 3";
222 else if( p_enc->fmt_out.i_codec == VLC_CODEC_MP2 )
225 i_codec_id = AV_CODEC_ID_MP2;
226 psz_namecodec = "MPEG I/II Layer 2";
228 else if( p_enc->fmt_out.i_codec == VLC_CODEC_MP1V )
231 i_codec_id = AV_CODEC_ID_MPEG1VIDEO;
232 psz_namecodec = "MPEG-1 video";
234 else if( !GetFfmpegCodec( p_enc->fmt_out.i_codec, &i_cat, &i_codec_id,
237 if( FindFfmpegChroma( p_enc->fmt_out.i_codec ) == PIX_FMT_NONE )
238 return VLC_EGENERIC; /* handed chroma output */
241 i_codec_id = AV_CODEC_ID_RAWVIDEO;
242 psz_namecodec = "Raw video";
245 if( p_enc->fmt_out.i_cat == VIDEO_ES && i_cat != VIDEO_ES )
247 msg_Err( p_enc, "\"%s\" is not a video encoder", psz_namecodec );
248 dialog_Fatal( p_enc, _("Streaming / Transcoding failed"),
249 _("\"%s\" is no video encoder."), psz_namecodec );
253 if( p_enc->fmt_out.i_cat == AUDIO_ES && i_cat != AUDIO_ES )
255 msg_Err( p_enc, "\"%s\" is not an audio encoder", psz_namecodec );
256 dialog_Fatal( p_enc, _("Streaming / Transcoding failed"),
257 _("\"%s\" is no audio encoder."), psz_namecodec );
261 if( p_enc->fmt_out.i_cat == SPU_ES )
263 /* We don't support subtitle encoding */
267 char *psz_encoder = var_GetString( p_this, ENC_CFG_PREFIX "codec" );
268 if( psz_encoder && *psz_encoder )
270 p_codec = avcodec_find_encoder_by_name( psz_encoder );
272 msg_Err( p_this, "Encoder `%s' not found", psz_encoder );
273 else if( p_codec->id != i_codec_id )
275 msg_Err( p_this, "Encoder `%s' can't handle %4.4s",
276 psz_encoder, (char*)&p_enc->fmt_out.i_codec );
282 p_codec = avcodec_find_encoder( i_codec_id );
285 msg_Err( p_enc, "cannot find encoder %s\n"
286 "*** Your Libav/FFmpeg installation is crippled. ***\n"
287 "*** Please check with your Libav/FFmpeg packager. ***\n"
288 "*** This is NOT a VLC media player issue. ***", psz_namecodec );
290 dialog_Fatal( p_enc, _("Streaming / Transcoding failed"), _(
291 /* I have had enough of all these MPEG-3 transcoding bug reports.
292 * Downstream packager, you had better not patch this out, or I will be really
293 * annoyed. Think about it - you don't want to fork the VLC translation files,
294 * do you? -- Courmisch, 2008-10-22 */
295 "It seems your Libav/FFmpeg (libavcodec) installation lacks the following encoder:\n"
297 "If you don't know how to fix this, ask for support from your distribution.\n"
299 "This is not an error inside VLC media player.\n"
300 "Do not contact the VideoLAN project about this issue.\n"),
305 /* Allocate the memory needed to store the encoder's structure */
306 if( ( p_sys = calloc( 1, sizeof(encoder_sys_t) ) ) == NULL )
308 p_enc->p_sys = p_sys;
309 p_sys->i_samples_delay = 0;
310 p_sys->p_codec = p_codec;
311 p_sys->b_planar = false;
313 p_sys->p_buffer = NULL;
314 p_sys->p_interleave_buf = NULL;
315 p_sys->i_buffer_out = 0;
317 p_context = avcodec_alloc_context3(p_codec);
318 p_sys->p_context = p_context;
319 p_sys->p_context->codec_id = p_sys->p_codec->id;
320 p_context->thread_type = 0;
321 p_context->debug = var_InheritInteger( p_enc, "avcodec-debug" );
322 p_context->opaque = (void *)p_this;
324 /* set CPU capabilities */
325 #if LIBAVUTIL_VERSION_CHECK(51, 25, 0, 42, 100)
326 av_set_cpu_flags_mask( INT_MAX & ~GetVlcDspMask() );
328 p_context->dsp_mask = GetVlcDspMask();
331 p_sys->i_key_int = var_GetInteger( p_enc, ENC_CFG_PREFIX "keyint" );
332 p_sys->i_b_frames = var_GetInteger( p_enc, ENC_CFG_PREFIX "bframes" );
333 p_sys->i_vtolerance = var_GetInteger( p_enc, ENC_CFG_PREFIX "vt" ) * 1000;
334 p_sys->b_interlace = var_GetBool( p_enc, ENC_CFG_PREFIX "interlace" );
335 p_sys->b_interlace_me = var_GetBool( p_enc, ENC_CFG_PREFIX "interlace-me" );
336 p_sys->b_pre_me = var_GetBool( p_enc, ENC_CFG_PREFIX "pre-me" );
337 p_sys->b_hurry_up = var_GetBool( p_enc, ENC_CFG_PREFIX "hurry-up" );
339 if( p_sys->b_hurry_up )
341 /* hurry up mode needs noise reduction, even small */
342 p_sys->i_noise_reduction = 1;
345 p_sys->i_rc_buffer_size = var_GetInteger( p_enc, ENC_CFG_PREFIX "rc-buffer-size" );
346 p_sys->f_rc_buffer_aggressivity = var_GetFloat( p_enc, ENC_CFG_PREFIX "rc-buffer-aggressivity" );
347 p_sys->f_i_quant_factor = var_GetFloat( p_enc, ENC_CFG_PREFIX "i-quant-factor" );
348 p_sys->i_noise_reduction = var_GetInteger( p_enc, ENC_CFG_PREFIX "noise-reduction" );
349 p_sys->b_mpeg4_matrix = var_GetBool( p_enc, ENC_CFG_PREFIX "mpeg4-matrix" );
351 f_val = var_GetFloat( p_enc, ENC_CFG_PREFIX "qscale" );
353 p_sys->i_quality = 0;
354 if( f_val < 0.01 || f_val > 255.0 )
357 p_sys->i_quality = (int)(FF_QP2LAMBDA * f_val + 0.5);
359 psz_val = var_GetString( p_enc, ENC_CFG_PREFIX "hq" );
360 p_sys->i_hq = FF_MB_DECISION_RD;
361 if( psz_val && *psz_val )
363 if( !strcmp( psz_val, "rd" ) )
364 p_sys->i_hq = FF_MB_DECISION_RD;
365 else if( !strcmp( psz_val, "bits" ) )
366 p_sys->i_hq = FF_MB_DECISION_BITS;
367 else if( !strcmp( psz_val, "simple" ) )
368 p_sys->i_hq = FF_MB_DECISION_SIMPLE;
370 p_sys->i_hq = FF_MB_DECISION_RD;
373 p_sys->i_hq = FF_MB_DECISION_RD;
376 p_sys->i_qmin = var_GetInteger( p_enc, ENC_CFG_PREFIX "qmin" );
377 p_sys->i_qmax = var_GetInteger( p_enc, ENC_CFG_PREFIX "qmax" );
378 p_sys->b_trellis = var_GetBool( p_enc, ENC_CFG_PREFIX "trellis" );
380 p_context->strict_std_compliance = var_GetInteger( p_enc, ENC_CFG_PREFIX "strict" );
382 p_sys->f_lumi_masking = var_GetFloat( p_enc, ENC_CFG_PREFIX "lumi-masking" );
383 p_sys->f_dark_masking = var_GetFloat( p_enc, ENC_CFG_PREFIX "dark-masking" );
384 p_sys->f_p_masking = var_GetFloat( p_enc, ENC_CFG_PREFIX "p-masking" );
385 p_sys->f_border_masking = var_GetFloat( p_enc, ENC_CFG_PREFIX "border-masking" );
386 #if (LIBAVCODEC_VERSION_MAJOR < 55)
387 p_sys->i_luma_elim = var_GetInteger( p_enc, ENC_CFG_PREFIX "luma-elim-threshold" );
388 p_sys->i_chroma_elim = var_GetInteger( p_enc, ENC_CFG_PREFIX "chroma-elim-threshold" );
391 psz_val = var_GetString( p_enc, ENC_CFG_PREFIX "aac-profile" );
392 /* libavcodec uses faac encoder atm, and it has issues with
393 * other than low-complexity profile, so default to that */
394 p_sys->i_aac_profile = FF_PROFILE_AAC_LOW;
395 if( psz_val && *psz_val )
397 if( !strncmp( psz_val, "main", 4 ) )
398 p_sys->i_aac_profile = FF_PROFILE_AAC_MAIN;
399 else if( !strncmp( psz_val, "low", 3 ) )
400 p_sys->i_aac_profile = FF_PROFILE_AAC_LOW;
401 #if 0 /* Not supported by FAAC encoder */
402 else if( !strncmp( psz_val, "ssr", 3 ) )
403 p_sys->i_aac_profile = FF_PROFILE_AAC_SSR;
405 else if( !strncmp( psz_val, "ltp", 3 ) )
406 p_sys->i_aac_profile = FF_PROFILE_AAC_LTP;
407 #if LIBAVCODEC_VERSION_CHECK( 54, 19, 0, 35, 100 )
408 /* These require libavcodec with libfdk-aac */
409 else if( !strncmp( psz_val, "hev2", 4 ) )
410 p_sys->i_aac_profile = FF_PROFILE_AAC_HE_V2;
411 else if( !strncmp( psz_val, "hev1", 4 ) )
412 p_sys->i_aac_profile = FF_PROFILE_AAC_HE;
416 msg_Warn( p_enc, "unknown AAC profile requested, setting it to low" );
417 p_sys->i_aac_profile = FF_PROFILE_AAC_LOW;
422 if( p_enc->fmt_in.i_cat == VIDEO_ES )
424 if( !p_enc->fmt_in.video.i_width || !p_enc->fmt_in.video.i_height )
426 msg_Warn( p_enc, "invalid size %ix%i", p_enc->fmt_in.video.i_width,
427 p_enc->fmt_in.video.i_height );
432 p_context->codec_type = AVMEDIA_TYPE_VIDEO;
434 p_context->width = p_enc->fmt_in.video.i_width;
435 p_context->height = p_enc->fmt_in.video.i_height;
437 p_context->time_base.num = p_enc->fmt_in.video.i_frame_rate_base;
438 p_context->time_base.den = p_enc->fmt_in.video.i_frame_rate;
439 if( p_codec->supported_framerates )
441 AVRational target = {
442 .num = p_enc->fmt_in.video.i_frame_rate,
443 .den = p_enc->fmt_in.video.i_frame_rate_base,
445 int idx = av_find_nearest_q_idx(target, p_codec->supported_framerates);
447 p_context->time_base.num = p_codec->supported_framerates[idx].den;
448 p_context->time_base.den = p_codec->supported_framerates[idx].num;
451 /* Defaults from ffmpeg.c */
452 p_context->qblur = 0.5;
453 p_context->qcompress = 0.5;
454 p_context->b_quant_offset = 1.25;
455 p_context->b_quant_factor = 1.25;
456 p_context->i_quant_offset = 0.0;
457 p_context->i_quant_factor = -0.8;
459 p_context->lumi_masking = p_sys->f_lumi_masking;
460 p_context->dark_masking = p_sys->f_dark_masking;
461 p_context->p_masking = p_sys->f_p_masking;
462 p_context->border_masking = p_sys->f_border_masking;
463 #if (LIBAVCODEC_VERSION_MAJOR < 55)
464 p_context->luma_elim_threshold = p_sys->i_luma_elim;
465 p_context->chroma_elim_threshold = p_sys->i_chroma_elim;
468 if( p_sys->i_key_int > 0 )
469 p_context->gop_size = p_sys->i_key_int;
470 p_context->max_b_frames =
471 VLC_CLIP( p_sys->i_b_frames, 0, FF_MAX_B_FRAMES );
472 p_context->b_frame_strategy = 0;
473 if( !p_context->max_b_frames &&
474 ( p_enc->fmt_out.i_codec == VLC_CODEC_MPGV ||
475 p_enc->fmt_out.i_codec == VLC_CODEC_MP2V ) )
476 p_context->flags |= CODEC_FLAG_LOW_DELAY;
478 av_reduce( &p_context->sample_aspect_ratio.num,
479 &p_context->sample_aspect_ratio.den,
480 p_enc->fmt_in.video.i_sar_num,
481 p_enc->fmt_in.video.i_sar_den, 1 << 30 );
484 p_enc->fmt_in.i_codec = VLC_CODEC_I420;
485 p_enc->fmt_in.video.i_chroma = p_enc->fmt_in.i_codec;
486 GetFfmpegChroma( &p_context->pix_fmt, &p_enc->fmt_in.video );
488 if( p_codec->pix_fmts )
490 const enum PixelFormat *p = p_codec->pix_fmts;
491 for( ; *p != -1; p++ )
493 if( *p == p_context->pix_fmt ) break;
495 if( *p == -1 ) p_context->pix_fmt = p_codec->pix_fmts[0];
496 GetVlcChroma( &p_enc->fmt_in.video, p_context->pix_fmt );
497 p_enc->fmt_in.i_codec = p_enc->fmt_in.video.i_chroma;
501 if ( p_sys->f_i_quant_factor != 0.0 )
502 p_context->i_quant_factor = p_sys->f_i_quant_factor;
504 p_context->noise_reduction = p_sys->i_noise_reduction;
506 if ( p_sys->b_mpeg4_matrix )
508 p_context->intra_matrix = mpeg4_default_intra_matrix;
509 p_context->inter_matrix = mpeg4_default_non_intra_matrix;
512 if ( p_sys->b_pre_me )
514 p_context->pre_me = 1;
515 p_context->me_pre_cmp = FF_CMP_CHROMA;
518 if ( p_sys->b_interlace )
520 if ( p_context->height <= 280 )
522 if ( p_context->height != 16 || p_context->width != 16 )
524 "disabling interlaced video because height=%d <= 280",
529 p_context->flags |= CODEC_FLAG_INTERLACED_DCT;
530 if ( p_sys->b_interlace_me )
531 p_context->flags |= CODEC_FLAG_INTERLACED_ME;
535 p_context->trellis = p_sys->b_trellis;
537 if ( p_sys->i_qmin > 0 && p_sys->i_qmin == p_sys->i_qmax )
538 p_context->flags |= CODEC_FLAG_QSCALE;
539 /* These codecs cause libavcodec to exit if thread_count is > 1.
540 See libavcodec/mpegvideo_enc.c:MPV_encode_init and
541 libavcodec/svq3.c , WMV2 calls MPV_encode_init also.
543 if ( i_codec_id == AV_CODEC_ID_FLV1 ||
544 i_codec_id == AV_CODEC_ID_H261 ||
545 i_codec_id == AV_CODEC_ID_LJPEG ||
546 i_codec_id == AV_CODEC_ID_MJPEG ||
547 i_codec_id == AV_CODEC_ID_H263 ||
548 i_codec_id == AV_CODEC_ID_H263P ||
549 i_codec_id == AV_CODEC_ID_MSMPEG4V1 ||
550 i_codec_id == AV_CODEC_ID_MSMPEG4V2 ||
551 i_codec_id == AV_CODEC_ID_MSMPEG4V3 ||
552 i_codec_id == AV_CODEC_ID_WMV1 ||
553 i_codec_id == AV_CODEC_ID_WMV2 ||
554 i_codec_id == AV_CODEC_ID_RV10 ||
555 i_codec_id == AV_CODEC_ID_RV20 ||
556 i_codec_id == AV_CODEC_ID_SVQ3 )
557 p_enc->i_threads = 1;
559 if( p_sys->i_vtolerance > 0 )
560 p_context->bit_rate_tolerance = p_sys->i_vtolerance;
562 /* usually if someone sets bitrate, he likes more to get that bitrate
563 * over quality should help 'normal' user to get asked bitrate
565 if( p_enc->fmt_out.i_bitrate > 0 && p_sys->i_qmax == 0 && p_sys->i_qmin == 0 )
571 if( p_sys->i_qmin > 0 )
573 p_context->qmin = p_sys->i_qmin;
574 p_context->mb_lmin = p_context->lmin = p_sys->i_qmin * FF_QP2LAMBDA;
576 if( p_sys->i_qmax > 0 )
578 p_context->qmax = p_sys->i_qmax;
579 p_context->mb_lmax = p_context->lmax = p_sys->i_qmax * FF_QP2LAMBDA;
581 p_context->max_qdiff = 3;
583 p_context->mb_decision = p_sys->i_hq;
585 if( p_sys->i_quality )
587 p_context->flags |= CODEC_FLAG_QSCALE;
588 p_context->global_quality = p_sys->i_quality;
592 p_context->rc_qsquish = 1.0;
593 if( p_sys->i_rc_buffer_size )
595 p_context->rc_max_rate = p_enc->fmt_out.i_bitrate;
596 p_context->rc_min_rate = p_enc->fmt_out.i_bitrate;
598 p_context->rc_buffer_size = p_sys->i_rc_buffer_size;
599 /* This is from ffmpeg's ffmpeg.c : */
600 p_context->rc_initial_buffer_occupancy
601 = p_sys->i_rc_buffer_size * 3/4;
602 p_context->rc_buffer_aggressivity = p_sys->f_rc_buffer_aggressivity;
605 else if( p_enc->fmt_in.i_cat == AUDIO_ES )
607 /* work around bug in libmp3lame encoding */
608 if( i_codec_id == AV_CODEC_ID_MP3 && p_enc->fmt_in.audio.i_channels > 2 )
609 p_enc->fmt_in.audio.i_channels = 2;
611 p_context->codec_type = AVMEDIA_TYPE_AUDIO;
612 p_context->sample_fmt = p_codec->sample_fmts ?
613 p_codec->sample_fmts[0] :
616 /* Try to match avcodec input format to vlc format so we could avoid one
618 if( GetVlcAudioFormat( p_context->sample_fmt ) != p_enc->fmt_in.i_codec )
620 msg_Dbg( p_enc, "Trying to find more suitable sample format instead of %s", av_get_sample_fmt_name( p_context->sample_fmt ) );
621 for( unsigned int i=0; p_codec->sample_fmts[i] != -1; i++ )
623 if( GetVlcAudioFormat( p_codec->sample_fmts[i] ) == p_enc->fmt_in.i_codec )
625 p_context->sample_fmt = p_codec->sample_fmts[i];
626 msg_Dbg( p_enc, "Using %s as new sample format", av_get_sample_fmt_name( p_context->sample_fmt ) );
631 p_sys->b_planar = av_sample_fmt_is_planar( p_context->sample_fmt );
632 // Try if we can use interleaved format for codec input as VLC doesn't really do planar audio yet
633 // FIXME: Remove when planar/interleaved audio in vlc is equally supported
634 if( p_sys->b_planar )
636 msg_Dbg( p_enc, "Trying to find packet sample format instead of planar %s", av_get_sample_fmt_name( p_context->sample_fmt ) );
637 for( unsigned int i=0; p_codec->sample_fmts[i] != -1; i++ )
639 if( !av_sample_fmt_is_planar( p_codec->sample_fmts[i] ) )
641 p_context->sample_fmt = p_codec->sample_fmts[i];
642 msg_Dbg( p_enc, "Changing to packet format %s as new sample format", av_get_sample_fmt_name( p_context->sample_fmt ) );
647 msg_Dbg( p_enc, "Ended up using %s as sample format", av_get_sample_fmt_name( p_context->sample_fmt ) );
648 p_enc->fmt_in.i_codec = GetVlcAudioFormat( p_context->sample_fmt );
649 p_sys->b_planar = av_sample_fmt_is_planar( p_context->sample_fmt );
651 p_context->sample_rate = p_enc->fmt_out.audio.i_rate;
652 date_Init( &p_sys->buffer_date, p_enc->fmt_out.audio.i_rate, 1 );
653 date_Set( &p_sys->buffer_date, 0 );
654 p_context->time_base.num = 1;
655 p_context->time_base.den = p_context->sample_rate;
656 p_context->channels = p_enc->fmt_out.audio.i_channels;
657 #if LIBAVUTIL_VERSION_CHECK( 52, 2, 6, 0, 0)
658 p_context->channel_layout = av_get_default_channel_layout( p_context->channels );
661 if ( p_enc->fmt_out.i_codec == VLC_CODEC_MP4A )
663 /* XXX: FAAC does resample only when setting the INPUT samplerate
664 * to the desired value (-R option of the faac frontend)
665 p_enc->fmt_in.audio.i_rate = p_context->sample_rate;*/
666 /* vlc should default to low-complexity profile, faac encoder
667 * has bug and aac audio has issues otherwise atm */
668 p_context->profile = p_sys->i_aac_profile;
672 /* Misc parameters */
673 p_context->bit_rate = p_enc->fmt_out.i_bitrate;
675 /* Set reasonable defaults to VP8, based on
676 libvpx-720p preset from libvpx ffmpeg-patch */
677 if( i_codec_id == AV_CODEC_ID_VP8 )
679 /* Lets give bitrate tolerance */
680 p_context->bit_rate_tolerance = __MAX(2 * (int)p_enc->fmt_out.i_bitrate, p_sys->i_vtolerance );
681 /* default to 120 frames between keyframe */
682 if( !var_GetInteger( p_enc, ENC_CFG_PREFIX "keyint" ) )
683 p_context->gop_size = 120;
684 /* Don't set rc-values atm, they were from time before
685 libvpx was officially in FFmpeg */
686 //p_context->rc_max_rate = 24 * 1000 * 1000; //24M
687 //p_context->rc_min_rate = 40 * 1000; // 40k
688 /* seems that FFmpeg presets have 720p as divider for buffers */
689 if( p_enc->fmt_out.video.i_height >= 720 )
691 /* Check that we don't overrun users qmin/qmax values */
692 if( !var_GetInteger( p_enc, ENC_CFG_PREFIX "qmin" ) )
694 p_context->qmin = 10;
695 p_context->mb_lmin = p_context->lmin = 10 * FF_QP2LAMBDA;
698 if( !var_GetInteger( p_enc, ENC_CFG_PREFIX "qmax" ) )
700 p_context->qmax = 42;
701 p_context->mb_lmax = p_context->lmax = 42 * FF_QP2LAMBDA;
705 if( !var_GetInteger( p_enc, ENC_CFG_PREFIX "qmin" ) )
708 p_context->mb_lmin = p_context->lmin = FF_QP2LAMBDA;
713 #if 0 /* enable when/if vp8 encoder is accepted in libavcodec */
715 p_context->level = 216;
716 p_context->profile = 0;
717 p_context->rc_buffer_aggressivity = 0.95;
718 p_context->token_partitions = 4;
719 p_context->mb_static_threshold = 0;
723 if( i_codec_id == AV_CODEC_ID_RAWVIDEO )
725 /* XXX: hack: Force same codec (will be handled by transcode) */
726 p_enc->fmt_in.video.i_chroma = p_enc->fmt_in.i_codec = p_enc->fmt_out.i_codec;
727 GetFfmpegChroma( &p_context->pix_fmt, &p_enc->fmt_in.video );
730 /* Make sure we get extradata filled by the encoder */
731 p_context->extradata_size = 0;
732 p_context->extradata = NULL;
733 p_context->flags |= CODEC_FLAG_GLOBAL_HEADER;
735 if( p_enc->i_threads >= 1)
736 p_context->thread_count = p_enc->i_threads;
738 p_context->thread_count = vlc_GetCPUCount();
741 char *psz_opts = var_InheritString(p_enc, ENC_CFG_PREFIX "options");
742 AVDictionary *options = NULL;
743 if (psz_opts && *psz_opts)
744 options = vlc_av_get_options(psz_opts);
748 ret = avcodec_open2( p_context, p_codec, options ? &options : NULL );
749 vlc_avcodec_unlock();
751 AVDictionaryEntry *t = NULL;
752 while ((t = av_dict_get(options, "", t, AV_DICT_IGNORE_SUFFIX))) {
753 msg_Err(p_enc, "Unknown option \"%s\"", t->key);
758 if( p_enc->fmt_in.i_cat != AUDIO_ES ||
759 (p_context->channels <= 2 && i_codec_id != AV_CODEC_ID_MP2
760 && i_codec_id != AV_CODEC_ID_MP3) )
762 msg_Err( p_enc, "cannot open encoder" );
763 dialog_Fatal( p_enc, _("Streaming / Transcoding failed"),
764 "%s", _("VLC could not open the encoder.") );
765 av_dict_free(&options);
769 if( p_context->channels > 2 )
771 p_context->channels = 2;
772 p_enc->fmt_in.audio.i_channels = 2; // FIXME
773 msg_Warn( p_enc, "stereo mode selected (codec limitation)" );
776 if( i_codec_id == AV_CODEC_ID_MP2 || i_codec_id == AV_CODEC_ID_MP3 )
779 es_format_t *fmt = &p_enc->fmt_out;
781 for ( i_frequency = 0; i_frequency < 6; i_frequency++ )
782 if ( fmt->audio.i_rate == mpa_freq_tab[i_frequency] )
785 if ( i_frequency == 6 )
787 msg_Err( p_enc, "MPEG audio doesn't support frequency=%d",
789 av_dict_free(&options);
793 for ( i = 1; i < 14; i++ )
794 if (fmt->i_bitrate/1000 <= mpa_bitrate_tab[i_frequency / 3][i])
797 if (fmt->i_bitrate / 1000 != mpa_bitrate_tab[i_frequency / 3][i])
800 "MPEG audio doesn't support bitrate=%d, using %d",
802 mpa_bitrate_tab[i_frequency / 3][i] * 1000 );
803 fmt->i_bitrate = mpa_bitrate_tab[i_frequency / 3][i] * 1000;
804 p_context->bit_rate = fmt->i_bitrate;
808 p_context->codec = NULL;
810 ret = avcodec_open2( p_context, p_codec, options ? &options : NULL );
811 vlc_avcodec_unlock();
814 msg_Err( p_enc, "cannot open encoder" );
816 _("Streaming / Transcoding failed"),
817 "%s", _("VLC could not open the encoder.") );
818 av_dict_free(&options);
823 av_dict_free(&options);
825 if( i_codec_id == AV_CODEC_ID_FLAC )
827 p_enc->fmt_out.i_extra = 4 + 1 + 3 + p_context->extradata_size;
828 p_enc->fmt_out.p_extra = malloc( p_enc->fmt_out.i_extra );
829 if( p_enc->fmt_out.p_extra )
831 uint8_t *p = p_enc->fmt_out.p_extra;
836 p[4] = 0x80; /* streaminfo block, last block before audio */
837 p[5] = ( p_context->extradata_size >> 16 ) & 0xff;
838 p[6] = ( p_context->extradata_size >> 8 ) & 0xff;
839 p[7] = ( p_context->extradata_size ) & 0xff;
840 memcpy( &p[8], p_context->extradata, p_context->extradata_size );
844 p_enc->fmt_out.i_extra = 0;
849 p_enc->fmt_out.i_extra = p_context->extradata_size;
850 if( p_enc->fmt_out.i_extra )
852 p_enc->fmt_out.p_extra = malloc( p_enc->fmt_out.i_extra );
853 if ( p_enc->fmt_out.p_extra == NULL )
857 memcpy( p_enc->fmt_out.p_extra, p_context->extradata,
858 p_enc->fmt_out.i_extra );
862 p_context->flags &= ~CODEC_FLAG_GLOBAL_HEADER;
864 if( p_enc->fmt_in.i_cat == AUDIO_ES )
866 p_enc->fmt_in.i_codec = GetVlcAudioFormat( p_sys->p_context->sample_fmt );
867 p_enc->fmt_in.audio.i_bitspersample = aout_BitsPerSample( p_enc->fmt_in.i_codec );
869 p_sys->i_sample_bytes = (p_enc->fmt_in.audio.i_bitspersample / 8);
870 p_sys->i_frame_size = p_context->frame_size > 1 ?
871 p_context->frame_size :
873 p_sys->p_buffer = malloc( p_sys->i_frame_size * p_sys->i_sample_bytes * p_enc->fmt_in.audio.i_channels);
874 if ( unlikely( p_sys->p_buffer == NULL ) )
878 p_enc->fmt_out.audio.i_blockalign = p_context->block_align;
879 p_enc->fmt_out.audio.i_bitspersample = aout_BitsPerSample( p_enc->fmt_out.i_codec );
880 //b_variable tells if we can feed any size frames to encoder
881 p_sys->b_variable = p_context->frame_size ? false : true;
883 p_sys->i_buffer_out = p_sys->i_frame_size * p_sys->i_sample_bytes * p_enc->fmt_in.audio.i_channels;
885 if( p_sys->b_planar )
887 p_sys->p_interleave_buf = malloc( p_sys->i_buffer_out );
888 if( unlikely( p_sys->p_interleave_buf == NULL ) )
893 p_sys->frame = avcodec_alloc_frame();
898 msg_Dbg( p_enc, "found encoder %s", psz_namecodec );
900 p_enc->pf_encode_video = EncodeVideo;
901 p_enc->pf_encode_audio = EncodeAudio;
906 free( p_enc->fmt_out.p_extra );
907 free( p_sys->p_buffer );
908 free( p_sys->p_interleave_buf );
913 /****************************************************************************
914 * EncodeVideo: the whole thing
915 ****************************************************************************/
916 static block_t *EncodeVideo( encoder_t *p_enc, picture_t *p_pict )
918 encoder_sys_t *p_sys = p_enc->p_sys;
920 /* Initialize the video output buffer the first time.
921 * This is done here instead of OpenEncoder() because we need the actual
922 * bits_per_pixel value, without having to assume anything.
924 const int bytesPerPixel = p_enc->fmt_out.video.i_bits_per_pixel ?
925 p_enc->fmt_out.video.i_bits_per_pixel / 8 : 3;
926 const int blocksize = __MAX( FF_MIN_BUFFER_SIZE,bytesPerPixel * p_sys->p_context->height * p_sys->p_context->width + 200 );
927 block_t *p_block = block_Alloc( blocksize );
928 if( unlikely(p_block == NULL) )
931 AVFrame *frame = NULL;
932 if( likely(p_pict) ) {
933 frame = p_sys->frame;
934 avcodec_get_frame_defaults( frame );
935 for( i_plane = 0; i_plane < p_pict->i_planes; i_plane++ )
937 p_sys->frame->data[i_plane] = p_pict->p[i_plane].p_pixels;
938 p_sys->frame->linesize[i_plane] = p_pict->p[i_plane].i_pitch;
941 /* Let libavcodec select the frame type */
942 p_sys->frame->pict_type = 0;
944 p_sys->frame->repeat_pict = p_pict->i_nb_fields - 2;
945 p_sys->frame->interlaced_frame = !p_pict->b_progressive;
946 p_sys->frame->top_field_first = !!p_pict->b_top_field_first;
948 /* Set the pts of the frame being encoded */
949 p_sys->frame->pts = p_pict->date ? p_pict->date : (int64_t)AV_NOPTS_VALUE;
951 if ( p_sys->b_hurry_up && p_sys->frame->pts != (int64_t)AV_NOPTS_VALUE )
953 mtime_t current_date = mdate();
955 if ( current_date + HURRY_UP_GUARD3 > p_sys->frame->pts )
957 p_sys->p_context->mb_decision = FF_MB_DECISION_SIMPLE;
958 p_sys->p_context->trellis = 0;
959 msg_Dbg( p_enc, "hurry up mode 3" );
963 p_sys->p_context->mb_decision = p_sys->i_hq;
965 if ( current_date + HURRY_UP_GUARD2 > p_sys->frame->pts )
967 p_sys->p_context->trellis = 0;
968 p_sys->p_context->noise_reduction = p_sys->i_noise_reduction
969 + (HURRY_UP_GUARD2 + current_date - p_sys->frame->pts) / 500;
970 msg_Dbg( p_enc, "hurry up mode 2" );
974 p_sys->p_context->trellis = p_sys->b_trellis;
976 p_sys->p_context->noise_reduction =
977 p_sys->i_noise_reduction;
981 if ( current_date + HURRY_UP_GUARD1 > p_sys->frame->pts )
983 p_sys->frame->pict_type = AV_PICTURE_TYPE_P;
984 /* msg_Dbg( p_enc, "hurry up mode 1 %lld", current_date + HURRY_UP_GUARD1 - frame.pts ); */
988 if ( p_sys->frame->pts != (int64_t)AV_NOPTS_VALUE && p_sys->frame->pts != 0 )
990 if ( p_sys->i_last_pts == p_sys->frame->pts )
992 msg_Warn( p_enc, "almost fed libavcodec with two frames with the "
993 "same PTS (%"PRId64 ")", p_sys->frame->pts );
996 else if ( p_sys->i_last_pts > p_sys->frame->pts )
998 msg_Warn( p_enc, "almost fed libavcodec with a frame in the "
999 "past (current: %"PRId64 ", last: %"PRId64")",
1000 p_sys->frame->pts, p_sys->i_last_pts );
1005 p_sys->i_last_pts = p_sys->frame->pts;
1009 frame->quality = p_sys->i_quality;
1012 #if (LIBAVCODEC_VERSION_MAJOR >= 54)
1016 av_init_packet( &av_pkt );
1017 av_pkt.data = p_block->p_buffer;
1018 av_pkt.size = p_block->i_buffer;
1020 if( avcodec_encode_video2( p_sys->p_context, &av_pkt, frame, &is_data ) < 0
1023 block_Release( p_block );
1027 p_block->i_buffer = av_pkt.size;
1028 p_block->i_length = av_pkt.duration / p_sys->p_context->time_base.den;
1029 p_block->i_pts = av_pkt.pts;
1030 p_block->i_dts = av_pkt.dts;
1031 if( unlikely( av_pkt.flags & AV_PKT_FLAG_CORRUPT ) )
1032 p_block->i_flags |= BLOCK_FLAG_CORRUPTED;
1035 int i_out = avcodec_encode_video( p_sys->p_context, p_block->p_buffer,
1036 p_block->i_buffer, frame );
1039 block_Release( p_block );
1043 p_block->i_buffer = i_out;
1045 /* FIXME, 3-2 pulldown is not handled correctly */
1046 p_block->i_length = INT64_C(1000000) *
1047 p_enc->fmt_in.video.i_frame_rate_base /
1048 p_enc->fmt_in.video.i_frame_rate;
1050 if( !p_sys->p_context->max_b_frames || !p_sys->p_context->delay )
1052 /* No delay -> output pts == input pts */
1054 p_block->i_dts = p_pict->date;
1055 p_block->i_pts = p_block->i_dts;
1057 else if( p_sys->p_context->coded_frame->pts != (int64_t)AV_NOPTS_VALUE &&
1058 p_sys->p_context->coded_frame->pts != 0 &&
1059 p_sys->i_buggy_pts_detect != p_sys->p_context->coded_frame->pts )
1061 p_sys->i_buggy_pts_detect = p_sys->p_context->coded_frame->pts;
1062 p_block->i_pts = p_sys->p_context->coded_frame->pts;
1064 if( p_sys->p_context->coded_frame->pict_type != AV_PICTURE_TYPE_I &&
1065 p_sys->p_context->coded_frame->pict_type != AV_PICTURE_TYPE_P )
1067 p_block->i_dts = p_block->i_pts;
1071 if( p_sys->i_last_ref_pts )
1073 p_block->i_dts = p_sys->i_last_ref_pts;
1077 /* Let's put something sensible */
1078 p_block->i_dts = p_block->i_pts;
1081 p_sys->i_last_ref_pts = p_block->i_pts;
1086 /* Buggy libavcodec which doesn't update coded_frame->pts
1088 p_block->i_dts = p_block->i_pts = p_pict->date;
1092 switch ( p_sys->p_context->coded_frame->pict_type )
1094 case AV_PICTURE_TYPE_I:
1095 case AV_PICTURE_TYPE_SI:
1096 p_block->i_flags |= BLOCK_FLAG_TYPE_I;
1098 case AV_PICTURE_TYPE_P:
1099 case AV_PICTURE_TYPE_SP:
1100 p_block->i_flags |= BLOCK_FLAG_TYPE_P;
1102 case AV_PICTURE_TYPE_B:
1103 case AV_PICTURE_TYPE_BI:
1104 p_block->i_flags |= BLOCK_FLAG_TYPE_B;
1107 p_block->i_flags |= BLOCK_FLAG_TYPE_PB;
1113 /****************************************************************************
1114 * EncodeAudio: the whole thing
1115 ****************************************************************************/
1116 static block_t *EncodeAudio( encoder_t *p_enc, block_t *p_aout_buf )
1118 encoder_sys_t *p_sys = p_enc->p_sys;
1120 block_t *p_block, *p_chain = NULL;
1121 int got_packet,i_out;
1122 size_t buffer_delay = 0, i_samples_left = 0;
1124 //i_bytes_left is amount of bytes we get
1125 i_samples_left = p_aout_buf ? p_aout_buf->i_nb_samples : 0;
1126 buffer_delay = p_sys->i_samples_delay * p_sys->i_sample_bytes * p_enc->fmt_in.audio.i_channels;
1128 //p_sys->i_buffer_out = p_sys->i_frame_size * chan * p_sys->i_sample_bytes
1129 //Calculate how many bytes we would need from current buffer to fill frame
1130 size_t leftover_samples = __MAX(0,__MIN((ssize_t)i_samples_left, (ssize_t)(p_sys->i_frame_size - p_sys->i_samples_delay)));
1132 // Check if we have enough samples in delay_buffer and current p_aout_buf to fill frame
1133 // Or if we are cleaning up
1134 if( ( buffer_delay > 0 ) &&
1135 ( ( p_aout_buf && ( leftover_samples <= p_aout_buf->i_nb_samples ) &&
1136 ( (leftover_samples + p_sys->i_samples_delay ) >= p_sys->i_frame_size )
1142 //How much we need to copy from new packet
1143 const int leftover = leftover_samples * p_enc->fmt_in.audio.i_channels * p_sys->i_sample_bytes;
1145 #if LIBAVUTIL_VERSION_CHECK( 51,27,2,46,100 )
1146 const int align = 0;
1148 const int align = 1;
1151 AVPacket packet = {0};
1152 avcodec_get_frame_defaults( p_sys->frame );
1153 p_sys->frame->format = p_sys->p_context->sample_fmt;
1154 p_sys->frame->pts = date_Get( &p_sys->buffer_date );
1155 p_sys->frame->nb_samples = leftover_samples + p_sys->i_samples_delay;
1156 date_Increment( &p_sys->buffer_date, p_sys->i_frame_size );
1158 if( likely( p_aout_buf ) )
1160 p_aout_buf->i_nb_samples -= leftover_samples;
1161 memcpy( p_sys->p_buffer+buffer_delay, p_aout_buf->p_buffer, leftover );
1163 // We need to deinterleave from p_aout_buf to p_buffer the leftover bytes
1164 if( p_sys->b_planar )
1165 aout_Deinterleave( p_sys->p_interleave_buf, p_sys->p_buffer,
1166 p_sys->i_frame_size, p_enc->fmt_in.audio.i_channels, p_enc->fmt_in.i_codec );
1168 memcpy( p_sys->p_buffer + buffer_delay, p_aout_buf->p_buffer, leftover);
1170 p_aout_buf->p_buffer += leftover;
1171 p_aout_buf->i_buffer -= leftover;
1172 p_aout_buf->i_pts = date_Get( &p_sys->buffer_date );
1174 if(unlikely( ( (leftover + buffer_delay) < p_sys->i_buffer_out ) &&
1175 !(p_sys->p_codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME ))
1178 msg_Dbg( p_enc, "No small last frame support, padding");
1179 size_t padding_size = p_sys->i_buffer_out - (leftover+buffer_delay);
1180 memset( p_sys->p_buffer + (leftover+buffer_delay), 0, padding_size );
1181 buffer_delay += padding_size;
1183 if( avcodec_fill_audio_frame( p_sys->frame, p_enc->fmt_in.audio.i_channels,
1184 p_sys->p_context->sample_fmt, p_sys->b_planar ? p_sys->p_interleave_buf : p_sys->p_buffer,
1185 leftover + buffer_delay,
1187 msg_Err( p_enc, "filling error on fillup" );
1190 p_sys->i_samples_delay = 0;
1192 p_block = block_Alloc( p_sys->i_buffer_out );
1193 av_init_packet( &packet );
1194 packet.data = p_block->p_buffer;
1195 packet.size = p_block->i_buffer;
1197 i_out = avcodec_encode_audio2( p_sys->p_context, &packet, p_sys->frame, &got_packet );
1199 if( unlikely( !got_packet || ( i_out < 0 ) || !packet.size ) )
1203 msg_Err( p_enc,"Encoding problem..");
1206 block_Release( p_block );
1210 p_block->i_buffer = packet.size;
1211 p_block->i_length = (mtime_t)1000000 *
1212 (mtime_t)p_sys->frame->nb_samples /
1213 (mtime_t)p_sys->p_context->sample_rate;
1215 p_block->i_dts = p_block->i_pts = packet.pts;
1217 block_ChainAppend( &p_chain, p_block );
1220 if( unlikely( !p_aout_buf ) )
1222 msg_Dbg(p_enc,"Flushing..");
1224 AVPacket packet = {0};
1225 p_block = block_Alloc( p_sys->i_buffer_out );
1226 av_init_packet( &packet );
1227 packet.data = p_block->p_buffer;
1228 packet.size = p_block->i_buffer;
1230 i_out = avcodec_encode_audio2( p_sys->p_context, &packet, NULL, &got_packet );
1231 p_block->i_buffer = packet.size;
1233 p_block->i_length = (mtime_t)1000000 *
1234 (mtime_t)p_sys->i_frame_size /
1235 (mtime_t)p_sys->p_context->sample_rate;
1237 p_block->i_dts = p_block->i_pts = packet.pts;
1239 if( i_out >= 0 && got_packet )
1240 block_ChainAppend( &p_chain, p_block );
1241 } while( got_packet && (i_out>=0) );
1246 while( ( p_aout_buf->i_nb_samples >= p_sys->i_frame_size ) ||
1247 ( p_sys->b_variable && p_aout_buf->i_nb_samples ) )
1249 AVPacket packet = {0};
1250 #if LIBAVUTIL_VERSION_CHECK( 51,27,2,46,100 )
1251 const int align = 0;
1253 const int align = 1;
1256 if( unlikely( p_aout_buf->i_pts > VLC_TS_INVALID &&
1257 p_aout_buf->i_pts != date_Get( &p_sys->buffer_date ) ) )
1258 date_Set( &p_sys->buffer_date, p_aout_buf->i_pts );
1260 avcodec_get_frame_defaults( p_sys->frame );
1261 if( p_sys->b_variable )
1262 p_sys->frame->nb_samples = p_aout_buf->i_nb_samples;
1264 p_sys->frame->nb_samples = p_sys->i_frame_size;
1265 p_sys->frame->format = p_sys->p_context->sample_fmt;
1266 p_sys->frame->pts = date_Get( &p_sys->buffer_date );
1268 if( p_sys->b_planar )
1270 aout_Deinterleave( p_sys->p_buffer, p_aout_buf->p_buffer,
1271 p_sys->frame->nb_samples, p_enc->fmt_in.audio.i_channels, p_enc->fmt_in.i_codec );
1275 if( avcodec_fill_audio_frame( p_sys->frame, p_enc->fmt_in.audio.i_channels,
1276 p_sys->p_context->sample_fmt,
1277 p_sys->b_planar ? p_sys->p_buffer : p_aout_buf->p_buffer,
1278 __MIN(p_sys->i_buffer_out, p_aout_buf->i_buffer),
1280 msg_Err( p_enc, "filling error on encode" );
1282 p_aout_buf->p_buffer += (p_sys->frame->nb_samples * p_enc->fmt_in.audio.i_channels * p_sys->i_sample_bytes);
1283 p_aout_buf->i_buffer -= (p_sys->frame->nb_samples * p_enc->fmt_in.audio.i_channels * p_sys->i_sample_bytes);
1284 p_aout_buf->i_nb_samples -= p_sys->frame->nb_samples;
1285 date_Increment( &p_sys->buffer_date, p_sys->frame->nb_samples );
1288 p_block = block_Alloc( p_sys->i_buffer_out );
1289 av_init_packet( &packet );
1290 packet.data = p_block->p_buffer;
1291 packet.size = p_block->i_buffer;
1293 i_out = avcodec_encode_audio2( p_sys->p_context, &packet, p_sys->frame, &got_packet );
1294 p_block->i_buffer = packet.size;
1296 if( unlikely( !got_packet || ( i_out < 0 ) ) )
1300 msg_Err( p_enc,"Encoding problem..");
1303 block_Release( p_block );
1307 p_block->i_buffer = packet.size;
1309 p_block->i_length = (mtime_t)1000000 *
1310 (mtime_t)p_sys->frame->nb_samples /
1311 (mtime_t)p_sys->p_context->sample_rate;
1313 p_block->i_dts = p_block->i_pts = packet.pts;
1315 block_ChainAppend( &p_chain, p_block );
1318 // We have leftover samples that don't fill frame_size, and libavcodec doesn't seem to like
1319 // that frame has more data than p_sys->i_frame_size most of the cases currently.
1320 if( p_aout_buf->i_nb_samples > 0 )
1322 memcpy( p_sys->p_buffer + buffer_delay, p_aout_buf->p_buffer,
1323 p_aout_buf->i_nb_samples * p_sys->i_sample_bytes * p_enc->fmt_in.audio.i_channels);
1324 p_sys->i_samples_delay += p_aout_buf->i_nb_samples;
1330 /*****************************************************************************
1331 * CloseEncoder: libavcodec encoder destruction
1332 *****************************************************************************/
1333 void CloseEncoder( vlc_object_t *p_this )
1335 encoder_t *p_enc = (encoder_t *)p_this;
1336 encoder_sys_t *p_sys = p_enc->p_sys;
1338 /*FIXME: we should use avcodec_free_frame, but we don't require so new avcodec that has it*/
1339 av_freep( &p_sys->frame );
1342 avcodec_close( p_sys->p_context );
1343 vlc_avcodec_unlock();
1344 av_free( p_sys->p_context );
1347 free( p_sys->p_interleave_buf );
1348 free( p_sys->p_buffer );