* LPCM codecs for PCM formats found in MPEG streams
* Copyright (c) 2009 Christian Schmidt
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
- * @file libavcodec/pcm-mpeg.c
+ * @file
* PCM codecs for encodings found in MPEG streams (DVD/Blu-ray)
*/
+#include "libavutil/audioconvert.h"
#include "avcodec.h"
#include "bytestream.h"
{
static const uint8_t bits_per_samples[4] = { 0, 16, 20, 24 };
static const uint32_t channel_layouts[16] = {
- 0, CH_LAYOUT_MONO, 0, CH_LAYOUT_STEREO, CH_LAYOUT_SURROUND,
- CH_LAYOUT_2_1, CH_LAYOUT_4POINT0, CH_LAYOUT_2_2, CH_LAYOUT_5POINT0,
- CH_LAYOUT_5POINT1, CH_LAYOUT_7POINT0, CH_LAYOUT_7POINT1, 0, 0, 0, 0
+ 0, AV_CH_LAYOUT_MONO, 0, AV_CH_LAYOUT_STEREO, AV_CH_LAYOUT_SURROUND,
+ AV_CH_LAYOUT_2_1, AV_CH_LAYOUT_4POINT0, AV_CH_LAYOUT_2_2, AV_CH_LAYOUT_5POINT0,
+ AV_CH_LAYOUT_5POINT1, AV_CH_LAYOUT_7POINT0, AV_CH_LAYOUT_7POINT1, 0, 0, 0, 0
};
static const uint8_t channels[16] = {
0, 1, 0, 2, 3, 3, 4, 4, 5, 6, 7, 8, 0, 0, 0, 0
uint8_t channel_layout = header[2] >> 4;
if (avctx->debug & FF_DEBUG_PICT_INFO)
- dprintf(avctx, "pcm_bluray_parse_header: header = %02x%02x%02x%02x\n",
+ av_dlog(avctx, "pcm_bluray_parse_header: header = %02x%02x%02x%02x\n",
header[0], header[1], header[2], header[3]);
/* get the sample depth and derive the sample format from it */
av_log(avctx, AV_LOG_ERROR, "unsupported sample depth (0)\n");
return -1;
}
- avctx->sample_fmt = avctx->bits_per_coded_sample == 16 ? SAMPLE_FMT_S16 :
- SAMPLE_FMT_S32;
+ avctx->sample_fmt = avctx->bits_per_coded_sample == 16 ? AV_SAMPLE_FMT_S16 :
+ AV_SAMPLE_FMT_S32;
/* get the sample rate. Not all values are known or exist. */
switch (header[2] & 0x0f) {
avctx->bits_per_coded_sample;
if (avctx->debug & FF_DEBUG_PICT_INFO)
- dprintf(avctx,
+ av_dlog(avctx,
"pcm_bluray_parse_header: %d channels, %d bits per sample, %d kHz, %d kbit\n",
avctx->channels, avctx->bits_per_coded_sample,
avctx->sample_rate, avctx->bit_rate);
samples = buf_size / sample_size;
output_size = samples * avctx->channels *
- (avctx->sample_fmt == SAMPLE_FMT_S32 ? 4 : 2);
+ (avctx->sample_fmt == AV_SAMPLE_FMT_S32 ? 4 : 2);
if (output_size > *data_size) {
av_log(avctx, AV_LOG_ERROR,
"Insufficient output buffer space (%d bytes, needed %d bytes)\n",
if (samples) {
switch (avctx->channel_layout) {
/* cases with same number of source and coded channels */
- case CH_LAYOUT_STEREO:
- case CH_LAYOUT_4POINT0:
- case CH_LAYOUT_2_2:
+ case AV_CH_LAYOUT_STEREO:
+ case AV_CH_LAYOUT_4POINT0:
+ case AV_CH_LAYOUT_2_2:
samples *= num_source_channels;
- if (SAMPLE_FMT_S16 == avctx->sample_fmt) {
+ if (AV_SAMPLE_FMT_S16 == avctx->sample_fmt) {
#if HAVE_BIGENDIAN
memcpy(dst16, src, output_size);
#else
}
break;
/* cases where number of source channels = coded channels + 1 */
- case CH_LAYOUT_MONO:
- case CH_LAYOUT_SURROUND:
- case CH_LAYOUT_2_1:
- case CH_LAYOUT_5POINT0:
- if (SAMPLE_FMT_S16 == avctx->sample_fmt) {
+ case AV_CH_LAYOUT_MONO:
+ case AV_CH_LAYOUT_SURROUND:
+ case AV_CH_LAYOUT_2_1:
+ case AV_CH_LAYOUT_5POINT0:
+ if (AV_SAMPLE_FMT_S16 == avctx->sample_fmt) {
do {
#if HAVE_BIGENDIAN
memcpy(dst16, src, avctx->channels * 2);
}
break;
/* remapping: L, R, C, LBack, RBack, LF */
- case CH_LAYOUT_5POINT1:
- if (SAMPLE_FMT_S16 == avctx->sample_fmt) {
+ case AV_CH_LAYOUT_5POINT1:
+ if (AV_SAMPLE_FMT_S16 == avctx->sample_fmt) {
do {
dst16[0] = bytestream_get_be16(&src);
dst16[1] = bytestream_get_be16(&src);
}
break;
/* remapping: L, R, C, LSide, LBack, RBack, RSide, <unused> */
- case CH_LAYOUT_7POINT0:
- if (SAMPLE_FMT_S16 == avctx->sample_fmt) {
+ case AV_CH_LAYOUT_7POINT0:
+ if (AV_SAMPLE_FMT_S16 == avctx->sample_fmt) {
do {
dst16[0] = bytestream_get_be16(&src);
dst16[1] = bytestream_get_be16(&src);
}
break;
/* remapping: L, R, C, LSide, LBack, RBack, RSide, LF */
- case CH_LAYOUT_7POINT1:
- if (SAMPLE_FMT_S16 == avctx->sample_fmt) {
+ case AV_CH_LAYOUT_7POINT1:
+ if (AV_SAMPLE_FMT_S16 == avctx->sample_fmt) {
do {
dst16[0] = bytestream_get_be16(&src);
dst16[1] = bytestream_get_be16(&src);
retval = src - avpkt->data;
if (avctx->debug & FF_DEBUG_BITSTREAM)
- dprintf(avctx, "pcm_bluray_decode_frame: decoded %d -> %d bytes\n",
+ av_dlog(avctx, "pcm_bluray_decode_frame: decoded %d -> %d bytes\n",
retval, *data_size);
return retval;
}
-AVCodec pcm_bluray_decoder = {
- "pcm_bluray",
- CODEC_TYPE_AUDIO,
- CODEC_ID_PCM_BLURAY,
- 0,
- NULL,
- NULL,
- NULL,
- pcm_bluray_decode_frame,
- .sample_fmts = (const enum SampleFormat[]){SAMPLE_FMT_S16, SAMPLE_FMT_S32,
- SAMPLE_FMT_NONE},
+AVCodec ff_pcm_bluray_decoder = {
+ .name = "pcm_bluray",
+ .type = AVMEDIA_TYPE_AUDIO,
+ .id = CODEC_ID_PCM_BLURAY,
+ .decode = pcm_bluray_decode_frame,
+ .sample_fmts = (const enum AVSampleFormat[]){AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S32,
+ AV_SAMPLE_FMT_NONE},
.long_name = NULL_IF_CONFIG_SMALL("PCM signed 16|20|24-bit big-endian for Blu-ray media"),
};
projects / ffmpeg / blobdiff