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-rw-r--r--libavcodec/pcm.c79
1 files changed, 40 insertions, 39 deletions
diff --git a/libavcodec/pcm.c b/libavcodec/pcm.c
index 24272d2..cc94a5e 100644
--- a/libavcodec/pcm.c
+++ b/libavcodec/pcm.c
@@ -2,20 +2,20 @@
* PCM codecs
* Copyright (c) 2001 Fabrice Bellard
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg 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.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
@@ -97,10 +97,8 @@ static int pcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
n = frame->nb_samples * avctx->channels;
samples = (const short *)frame->data[0];
- if ((ret = ff_alloc_packet(avpkt, n * sample_size))) {
- av_log(avctx, AV_LOG_ERROR, "Error getting output packet\n");
+ if ((ret = ff_alloc_packet2(avctx, avpkt, n * sample_size)))
return ret;
- }
dst = avpkt->data;
switch (avctx->codec->id) {
@@ -272,7 +270,9 @@ static int pcm_decode_frame(AVCodecContext *avctx, void *data,
if (AV_CODEC_ID_PCM_DVD == avctx->codec_id) {
if (avctx->bits_per_coded_sample != 20 &&
avctx->bits_per_coded_sample != 24) {
- av_log(avctx, AV_LOG_ERROR, "PCM DVD unsupported sample depth\n");
+ av_log(avctx, AV_LOG_ERROR,
+ "PCM DVD unsupported sample depth %i\n",
+ avctx->bits_per_coded_sample);
return AVERROR(EINVAL);
}
/* 2 samples are interleaved per block in PCM_DVD */
@@ -293,8 +293,10 @@ static int pcm_decode_frame(AVCodecContext *avctx, void *data,
if (n && buf_size % n) {
if (buf_size < n) {
- av_log(avctx, AV_LOG_ERROR, "invalid PCM packet\n");
- return -1;
+ av_log(avctx, AV_LOG_ERROR,
+ "Invalid PCM packet, data has size %d but at least a size of %d was expected\n",
+ buf_size, n);
+ return AVERROR_INVALIDDATA;
} else
buf_size -= buf_size % n;
}
@@ -339,15 +341,15 @@ static int pcm_decode_frame(AVCodecContext *avctx, void *data,
break;
case AV_CODEC_ID_PCM_S16LE_PLANAR:
{
- const uint8_t *src2[MAX_CHANNELS];
+ int i;
n /= avctx->channels;
- for (c = 0; c < avctx->channels; c++)
- src2[c] = &src[c * n * 2];
- for (; n > 0; n--)
- for (c = 0; c < avctx->channels; c++) {
- AV_WN16A(samples, bytestream_get_le16(&src2[c]));
+ for (c = 0; c < avctx->channels; c++) {
+ samples = s->frame.data[c];
+ for (i = n; i > 0; i--) {
+ AV_WN16A(samples, bytestream_get_le16(&src));
samples += 2;
}
+ }
break;
}
case AV_CODEC_ID_PCM_U16LE:
@@ -443,26 +445,24 @@ static int pcm_decode_frame(AVCodecContext *avctx, void *data,
case AV_CODEC_ID_PCM_LXF:
{
int i;
- const uint8_t *src8;
- dst_int32_t = (int32_t *)s->frame.data[0];
n /= avctx->channels;
- // unpack and de-planarize
- for (i = 0; i < n; i++) {
- for (c = 0, src8 = src + i * 5; c < avctx->channels; c++, src8 += n * 5) {
- // extract low 20 bits and expand to 32 bits
- *dst_int32_t++ = (src8[2] << 28) |
- (src8[1] << 20) |
- (src8[0] << 12) |
- ((src8[2] & 0xF) << 8) |
- src8[1];
- }
- for (c = 0, src8 = src + i * 5; c < avctx->channels; c++, src8 += n * 5) {
- // extract high 20 bits and expand to 32 bits
- *dst_int32_t++ = (src8[4] << 24) |
- (src8[3] << 16) |
- ((src8[2] & 0xF0) << 8) |
- (src8[4] << 4) |
- (src8[3] >> 4);
+ //unpack
+ for (c = 0; c < avctx->channels; c++) {
+ dst_int32_t = (int32_t *)s->frame.data[c];
+ for (i = 0; i < n; i++) {
+ //extract low 20 bits and expand to 32 bits
+ *dst_int32_t++ = (src[2] << 28) |
+ (src[1] << 20) |
+ (src[0] << 12) |
+ ((src[2] & 0xF) << 8) |
+ src[1];
+ //extract high 20 bits and expand to 32 bits
+ *dst_int32_t++ = (src[4] << 24) |
+ (src[3] << 16) |
+ ((src[2] & 0xF0) << 8) |
+ (src[4] << 4) |
+ (src[3] >> 4);
+ src += 5;
}
}
break;
@@ -518,18 +518,18 @@ AVCodec ff_ ## name_ ## _decoder = { \
PCM_DECODER(id, sample_fmt_, name, long_name_)
/* Note: Do not forget to add new entries to the Makefile as well. */
-PCM_CODEC (AV_CODEC_ID_PCM_ALAW, AV_SAMPLE_FMT_S16, pcm_alaw, "PCM A-law");
+PCM_CODEC (AV_CODEC_ID_PCM_ALAW, AV_SAMPLE_FMT_S16, pcm_alaw, "PCM A-law / G.711 A-law");
PCM_DECODER(AV_CODEC_ID_PCM_DVD, AV_SAMPLE_FMT_S32, pcm_dvd, "PCM signed 20|24-bit big-endian");
PCM_CODEC (AV_CODEC_ID_PCM_F32BE, AV_SAMPLE_FMT_FLT, pcm_f32be, "PCM 32-bit floating point big-endian");
PCM_CODEC (AV_CODEC_ID_PCM_F32LE, AV_SAMPLE_FMT_FLT, pcm_f32le, "PCM 32-bit floating point little-endian");
PCM_CODEC (AV_CODEC_ID_PCM_F64BE, AV_SAMPLE_FMT_DBL, pcm_f64be, "PCM 64-bit floating point big-endian");
PCM_CODEC (AV_CODEC_ID_PCM_F64LE, AV_SAMPLE_FMT_DBL, pcm_f64le, "PCM 64-bit floating point little-endian");
-PCM_DECODER(AV_CODEC_ID_PCM_LXF, AV_SAMPLE_FMT_S32, pcm_lxf, "PCM signed 20-bit little-endian planar");
-PCM_CODEC (AV_CODEC_ID_PCM_MULAW, AV_SAMPLE_FMT_S16, pcm_mulaw, "PCM mu-law");
+PCM_DECODER(AV_CODEC_ID_PCM_LXF, AV_SAMPLE_FMT_S32P,pcm_lxf, "PCM signed 20-bit little-endian planar");
+PCM_CODEC (AV_CODEC_ID_PCM_MULAW, AV_SAMPLE_FMT_S16, pcm_mulaw, "PCM mu-law / G.711 mu-law");
PCM_CODEC (AV_CODEC_ID_PCM_S8, AV_SAMPLE_FMT_U8, pcm_s8, "PCM signed 8-bit");
PCM_CODEC (AV_CODEC_ID_PCM_S16BE, AV_SAMPLE_FMT_S16, pcm_s16be, "PCM signed 16-bit big-endian");
PCM_CODEC (AV_CODEC_ID_PCM_S16LE, AV_SAMPLE_FMT_S16, pcm_s16le, "PCM signed 16-bit little-endian");
-PCM_DECODER(AV_CODEC_ID_PCM_S16LE_PLANAR, AV_SAMPLE_FMT_S16, pcm_s16le_planar, "PCM 16-bit little-endian planar");
+PCM_DECODER(AV_CODEC_ID_PCM_S16LE_PLANAR, AV_SAMPLE_FMT_S16P,pcm_s16le_planar, "PCM 16-bit little-endian planar");
PCM_CODEC (AV_CODEC_ID_PCM_S24BE, AV_SAMPLE_FMT_S32, pcm_s24be, "PCM signed 24-bit big-endian");
PCM_CODEC (AV_CODEC_ID_PCM_S24DAUD, AV_SAMPLE_FMT_S16, pcm_s24daud, "PCM D-Cinema audio signed 24-bit");
PCM_CODEC (AV_CODEC_ID_PCM_S24LE, AV_SAMPLE_FMT_S32, pcm_s24le, "PCM signed 24-bit little-endian");
@@ -543,3 +543,4 @@ PCM_CODEC (AV_CODEC_ID_PCM_U24LE, AV_SAMPLE_FMT_S32, pcm_u24le, "
PCM_CODEC (AV_CODEC_ID_PCM_U32BE, AV_SAMPLE_FMT_S32, pcm_u32be, "PCM unsigned 32-bit big-endian");
PCM_CODEC (AV_CODEC_ID_PCM_U32LE, AV_SAMPLE_FMT_S32, pcm_u32le, "PCM unsigned 32-bit little-endian");
PCM_DECODER(AV_CODEC_ID_PCM_ZORK, AV_SAMPLE_FMT_U8, pcm_zork, "PCM Zork");
+
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