summaryrefslogtreecommitdiffstats
path: root/libaf/af_lavcac3enc.c
diff options
context:
space:
mode:
authorwm4 <wm4@nowhere>2012-11-05 17:02:04 +0100
committerwm4 <wm4@nowhere>2012-11-12 20:06:14 +0100
commitd4bdd0473d6f43132257c9fb3848d829755167a3 (patch)
tree8021c2f7da1841393c8c832105e20cd527826d6c /libaf/af_lavcac3enc.c
parentbd48deba77bd5582c5829d6fe73a7d2571088aba (diff)
downloadmpv-d4bdd0473d6f43132257c9fb3848d829755167a3.tar.bz2
mpv-d4bdd0473d6f43132257c9fb3848d829755167a3.tar.xz
Rename directories, move files (step 1 of 2) (does not compile)
Tis drops the silly lib prefixes, and attempts to organize the tree in a more logical way. Make the top-level directory less cluttered as well. Renames the following directories: libaf -> audio/filter libao2 -> audio/out libvo -> video/out libmpdemux -> demux Split libmpcodecs: vf* -> video/filter vd*, dec_video.* -> video/decode mp_image*, img_format*, ... -> video/ ad*, dec_audio.* -> audio/decode libaf/format.* is moved to audio/ - this is similar to how mp_image.* is located in video/. Move most top-level .c/.h files to core. (talloc.c/.h is left on top- level, because it's external.) Park some of the more annoying files in compat/. Some of these are relicts from the time mplayer used ffmpeg internals. sub/ is not split, because it's too much of a mess (subtitle code is mixed with OSD display and rendering). Maybe the organization of core is not ideal: it mixes playback core (like mplayer.c) and utility helpers (like bstr.c/h). Should the need arise, the playback core will be moved somewhere else, while core contains all helper and common code.
Diffstat (limited to 'libaf/af_lavcac3enc.c')
-rw-r--r--libaf/af_lavcac3enc.c332
1 files changed, 0 insertions, 332 deletions
diff --git a/libaf/af_lavcac3enc.c b/libaf/af_lavcac3enc.c
deleted file mode 100644
index ad78266ad3..0000000000
--- a/libaf/af_lavcac3enc.c
+++ /dev/null
@@ -1,332 +0,0 @@
-/*
- * audio filter for runtime AC-3 encoding with libavcodec.
- *
- * Copyright (C) 2007 Ulion <ulion A gmail P com>
- *
- * This file is part of MPlayer.
- *
- * MPlayer 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.
- *
- * MPlayer 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.
- *
- * You should have received a copy of the GNU General Public License along
- * with MPlayer; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <inttypes.h>
-#include <assert.h>
-
-#include <libavcodec/avcodec.h>
-#include <libavutil/intreadwrite.h>
-#include <libavutil/mem.h>
-
-#include "config.h"
-#include "af.h"
-#include "reorder_ch.h"
-
-
-#define AC3_MAX_CHANNELS 6
-#define AC3_MAX_CODED_FRAME_SIZE 3840
-#define AC3_FRAME_SIZE (6 * 256)
-const uint16_t ac3_bitrate_tab[19] = {
- 32, 40, 48, 56, 64, 80, 96, 112, 128,
- 160, 192, 224, 256, 320, 384, 448, 512, 576, 640
-};
-
-// Data for specific instances of this filter
-typedef struct af_ac3enc_s {
- struct AVCodec *lavc_acodec;
- struct AVCodecContext *lavc_actx;
- int add_iec61937_header;
- int bit_rate;
- int pending_data_size;
- char *pending_data;
- int pending_len;
- int expect_len;
- int min_channel_num;
- int in_sampleformat;
-} af_ac3enc_t;
-
-// Initialization and runtime control
-static int control(struct af_instance *af, int cmd, void *arg)
-{
- af_ac3enc_t *s = af->setup;
- struct mp_audio *data = arg;
- int i, bit_rate, test_output_res;
- static const int default_bit_rate[AC3_MAX_CHANNELS+1] = \
- {0, 96000, 192000, 256000, 384000, 448000, 448000};
-
- switch (cmd){
- case AF_CONTROL_REINIT:
- if (AF_FORMAT_IS_AC3(data->format) || data->nch < s->min_channel_num)
- return AF_DETACH;
-
- af->data->format = s->in_sampleformat;
- af->data->bps = af_fmt2bits(s->in_sampleformat) / 8;
- if (data->rate == 48000 || data->rate == 44100 || data->rate == 32000)
- af->data->rate = data->rate;
- else
- af->data->rate = 48000;
- if (data->nch > AC3_MAX_CHANNELS)
- af->data->nch = AC3_MAX_CHANNELS;
- else
- af->data->nch = data->nch;
- test_output_res = af_test_output(af, data);
-
- s->pending_len = 0;
- s->expect_len = AC3_FRAME_SIZE * data->nch * af->data->bps;
- assert(s->expect_len <= s->pending_data_size);
- if (s->add_iec61937_header)
- af->mul = (double)AC3_FRAME_SIZE * 2 * 2 / s->expect_len;
- else
- af->mul = (double)AC3_MAX_CODED_FRAME_SIZE / s->expect_len;
-
- mp_msg(MSGT_AFILTER, MSGL_DBG2, "af_lavcac3enc reinit: %d, %d, %f, %d.\n",
- data->nch, data->rate, af->mul, s->expect_len);
-
- bit_rate = s->bit_rate ? s->bit_rate : default_bit_rate[af->data->nch];
-
- if (s->lavc_actx->channels != af->data->nch ||
- s->lavc_actx->sample_rate != af->data->rate ||
- s->lavc_actx->bit_rate != bit_rate) {
-
- avcodec_close(s->lavc_actx);
-
- // Put sample parameters
- s->lavc_actx->channels = af->data->nch;
- s->lavc_actx->sample_rate = af->data->rate;
- s->lavc_actx->bit_rate = bit_rate;
-
- if (avcodec_open2(s->lavc_actx, s->lavc_acodec, NULL) < 0) {
- mp_tmsg(MSGT_AFILTER, MSGL_ERR, "Couldn't open codec %s, br=%d.\n", "ac3", bit_rate);
- return AF_ERROR;
- }
- }
- if (s->lavc_actx->frame_size != AC3_FRAME_SIZE) {
- mp_msg(MSGT_AFILTER, MSGL_ERR, "lavcac3enc: unexpected ac3 "
- "encoder frame size %d\n", s->lavc_actx->frame_size);
- return AF_ERROR;
- }
- af->data->format = AF_FORMAT_AC3_BE;
- af->data->bps = 2;
- af->data->nch = 2;
- return test_output_res;
- case AF_CONTROL_COMMAND_LINE:
- mp_msg(MSGT_AFILTER, MSGL_DBG2, "af_lavcac3enc cmdline: %s.\n", (char*)arg);
- s->bit_rate = 0;
- s->min_channel_num = 0;
- s->add_iec61937_header = 0;
- sscanf(arg,"%d:%d:%d", &s->add_iec61937_header, &s->bit_rate,
- &s->min_channel_num);
- if (s->bit_rate < 1000)
- s->bit_rate *= 1000;
- if (s->bit_rate) {
- for (i = 0; i < 19; ++i)
- if (ac3_bitrate_tab[i] * 1000 == s->bit_rate)
- break;
- if (i >= 19) {
- mp_msg(MSGT_AFILTER, MSGL_WARN, "af_lavcac3enc unable set unsupported "
- "bitrate %d, use default bitrate (check manpage to see "
- "supported bitrates).\n", s->bit_rate);
- s->bit_rate = 0;
- }
- }
- if (s->min_channel_num == 0)
- s->min_channel_num = 5;
- mp_msg(MSGT_AFILTER, MSGL_V, "af_lavcac3enc config spdif:%d, bitrate:%d, "
- "minchnum:%d.\n", s->add_iec61937_header, s->bit_rate,
- s->min_channel_num);
- return AF_OK;
- }
- return AF_UNKNOWN;
-}
-
-// Deallocate memory
-static void uninit(struct af_instance* af)
-{
- if (af->data)
- free(af->data->audio);
- free(af->data);
- if (af->setup) {
- af_ac3enc_t *s = af->setup;
- af->setup = NULL;
- if(s->lavc_actx) {
- avcodec_close(s->lavc_actx);
- av_free(s->lavc_actx);
- }
- free(s->pending_data);
- free(s);
- }
-}
-
-// Filter data through filter
-static struct mp_audio* play(struct af_instance* af, struct mp_audio* data)
-{
- af_ac3enc_t *s = af->setup;
- struct mp_audio *c = data; // Current working data
- struct mp_audio *l;
- int len, left, outsize = 0, destsize;
- char *buf, *src, *dest;
- int max_output_len;
- int frame_num = (data->len + s->pending_len) / s->expect_len;
- int samplesize = af_fmt2bits(s->in_sampleformat) / 8;
-
- if (s->add_iec61937_header)
- max_output_len = AC3_FRAME_SIZE * 2 * 2 * frame_num;
- else
- max_output_len = AC3_MAX_CODED_FRAME_SIZE * frame_num;
-
- if (af->data->len < max_output_len) {
- mp_msg(MSGT_AFILTER, MSGL_V, "[libaf] Reallocating memory in module %s, "
- "old len = %i, new len = %i\n", af->info->name, af->data->len,
- max_output_len);
- free(af->data->audio);
- af->data->audio = malloc(max_output_len);
- if (!af->data->audio) {
- mp_msg(MSGT_AFILTER, MSGL_FATAL, "[libaf] Could not allocate memory \n");
- return NULL;
- }
- af->data->len = max_output_len;
- }
-
- l = af->data; // Local data
- buf = l->audio;
- src = c->audio;
- left = c->len;
-
-
- while (left > 0) {
- if (left + s->pending_len < s->expect_len) {
- memcpy(s->pending_data + s->pending_len, src, left);
- src += left;
- s->pending_len += left;
- left = 0;
- break;
- }
-
- dest = s->add_iec61937_header ? buf + 8 : buf;
- destsize = (char *)l->audio + l->len - buf;
-
- if (s->pending_len) {
- int needs = s->expect_len - s->pending_len;
- if (needs > 0) {
- memcpy(s->pending_data + s->pending_len, src, needs);
- src += needs;
- left -= needs;
- }
-
- if (c->nch >= 5)
- reorder_channel_nch(s->pending_data,
- AF_CHANNEL_LAYOUT_MPLAYER_DEFAULT,
- AF_CHANNEL_LAYOUT_LAVC_DEFAULT,
- c->nch,
- s->expect_len / samplesize, samplesize);
-
- len = avcodec_encode_audio(s->lavc_actx, dest, destsize,
- (void *)s->pending_data);
- s->pending_len = 0;
- }
- else {
- if (c->nch >= 5)
- reorder_channel_nch(src,
- AF_CHANNEL_LAYOUT_MPLAYER_DEFAULT,
- AF_CHANNEL_LAYOUT_LAVC_DEFAULT,
- c->nch,
- s->expect_len / samplesize, samplesize);
- len = avcodec_encode_audio(s->lavc_actx,dest,destsize,(void *)src);
- src += s->expect_len;
- left -= s->expect_len;
- }
- mp_msg(MSGT_AFILTER, MSGL_DBG2, "avcodec_encode_audio got %d, pending %d.\n",
- len, s->pending_len);
-
- if (s->add_iec61937_header) {
- int bsmod = dest[5] & 0x7;
-
- AV_WB16(buf, 0xF872); // iec 61937 syncword 1
- AV_WB16(buf + 2, 0x4E1F); // iec 61937 syncword 2
- buf[4] = bsmod; // bsmod
- buf[5] = 0x01; // data-type ac3
- AV_WB16(buf + 6, len << 3); // number of bits in payload
-
- memset(buf + 8 + len, 0, AC3_FRAME_SIZE * 2 * 2 - 8 - len);
- len = AC3_FRAME_SIZE * 2 * 2;
- }
-
- outsize += len;
- buf += len;
- }
- c->audio = l->audio;
- c->nch = 2;
- c->bps = 2;
- c->len = outsize;
- mp_msg(MSGT_AFILTER, MSGL_DBG2, "play return size %d, pending %d\n",
- outsize, s->pending_len);
- return c;
-}
-
-static int af_open(struct af_instance* af){
-
- af_ac3enc_t *s = calloc(1,sizeof(af_ac3enc_t));
- af->control=control;
- af->uninit=uninit;
- af->play=play;
- af->mul=1;
- af->data=calloc(1,sizeof(struct mp_audio));
- af->setup=s;
-
- s->lavc_acodec = avcodec_find_encoder_by_name("ac3");
- if (!s->lavc_acodec) {
- mp_tmsg(MSGT_AFILTER, MSGL_ERR, "Audio LAVC, couldn't find encoder for codec %s.\n", "ac3");
- return AF_ERROR;
- }
-
- s->lavc_actx = avcodec_alloc_context3(s->lavc_acodec);
- if (!s->lavc_actx) {
- mp_tmsg(MSGT_AFILTER, MSGL_ERR, "Audio LAVC, couldn't allocate context!\n");
- return AF_ERROR;
- }
- const enum AVSampleFormat *fmts = s->lavc_acodec->sample_fmts;
- for (int i = 0; ; i++) {
- if (fmts[i] == AV_SAMPLE_FMT_NONE) {
- mp_msg(MSGT_AFILTER, MSGL_ERR, "Audio LAVC, encoder doesn't "
- "support expected sample formats!\n");
- return AF_ERROR;
- } else if (fmts[i] == AV_SAMPLE_FMT_S16) {
- s->in_sampleformat = AF_FORMAT_S16_NE;
- s->lavc_actx->sample_fmt = fmts[i];
- break;
- } else if (fmts[i] == AV_SAMPLE_FMT_FLT) {
- s->in_sampleformat = AF_FORMAT_FLOAT_NE;
- s->lavc_actx->sample_fmt = fmts[i];
- break;
- }
- }
- char buf[100];
- mp_msg(MSGT_AFILTER, MSGL_V, "[af_lavcac3enc]: in sample format: %s\n",
- af_fmt2str(s->in_sampleformat, buf, 100));
- s->pending_data_size = AF_NCH * AC3_FRAME_SIZE *
- af_fmt2bits(s->in_sampleformat) / 8;
- s->pending_data = malloc(s->pending_data_size);
-
- return AF_OK;
-}
-
-struct af_info af_info_lavcac3enc = {
- "runtime encode to ac3 using libavcodec",
- "lavcac3enc",
- "Ulion",
- "",
- AF_FLAGS_REENTRANT,
- af_open
-};