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add pcm_s16le_planar support for electronicarts files
Originally committed as revision 11092 to svn://svn.ffmpeg.org/ffmpeg/trunk
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4d4f59d750
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725d86bfd5
@ -245,6 +245,7 @@ OBJS-$(CONFIG_PCM_S24DAUD_DECODER) += pcm.o
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OBJS-$(CONFIG_PCM_S24DAUD_ENCODER) += pcm.o
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OBJS-$(CONFIG_PCM_S16LE_DECODER) += pcm.o
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OBJS-$(CONFIG_PCM_S16LE_ENCODER) += pcm.o
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OBJS-$(CONFIG_PCM_S16LE_PLANAR_DECODER)+= pcm.o
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OBJS-$(CONFIG_PCM_S16BE_DECODER) += pcm.o
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OBJS-$(CONFIG_PCM_S16BE_ENCODER) += pcm.o
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OBJS-$(CONFIG_PCM_U16LE_DECODER) += pcm.o
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@ -211,6 +211,7 @@ void avcodec_register_all(void)
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REGISTER_ENCDEC (PCM_S8, pcm_s8);
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REGISTER_ENCDEC (PCM_S16BE, pcm_s16be);
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REGISTER_ENCDEC (PCM_S16LE, pcm_s16le);
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REGISTER_DECODER (PCM_S16LE_PLANAR, pcm_s16le_planar);
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REGISTER_ENCDEC (PCM_S24BE, pcm_s24be);
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REGISTER_ENCDEC (PCM_S24DAUD, pcm_s24daud);
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REGISTER_ENCDEC (PCM_S24LE, pcm_s24le);
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@ -189,6 +189,7 @@ enum CodecID {
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CODEC_ID_PCM_U24BE,
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CODEC_ID_PCM_S24DAUD,
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CODEC_ID_PCM_ZORK,
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CODEC_ID_PCM_S16LE_PLANAR,
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/* various ADPCM codecs */
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CODEC_ID_ADPCM_IMA_QT= 0x11000,
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@ -28,6 +28,8 @@
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#include "bitstream.h" // for ff_reverse
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#include "bytestream.h"
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#define MAX_CHANNELS 64
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/* from g711.c by SUN microsystems (unrestricted use) */
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#define SIGN_BIT (0x80) /* Sign bit for a A-law byte. */
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@ -374,15 +376,15 @@ static int pcm_decode_frame(AVCodecContext *avctx,
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uint8_t *buf, int buf_size)
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{
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PCMDecode *s = avctx->priv_data;
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int n;
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int c, n;
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short *samples;
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uint8_t *src;
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uint8_t *src, *src2[MAX_CHANNELS];
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samples = data;
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src = buf;
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n= av_get_bits_per_sample(avctx->codec_id)/8;
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if(n && buf_size % n){
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if((n && buf_size % n) || avctx->channels > MAX_CHANNELS){
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av_log(avctx, AV_LOG_ERROR, "invalid PCM packet\n");
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return -1;
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}
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@ -390,6 +392,10 @@ static int pcm_decode_frame(AVCodecContext *avctx,
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buf_size= FFMIN(buf_size, *data_size/2);
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*data_size=0;
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n = buf_size/avctx->channels;
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for(c=0;c<avctx->channels;c++)
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src2[c] = &src[c*n];
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switch(avctx->codec->id) {
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case CODEC_ID_PCM_S32LE:
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decode_to16(4, 1, 0, &src, &samples, buf_size);
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@ -430,6 +436,12 @@ static int pcm_decode_frame(AVCodecContext *avctx,
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*samples++ = bytestream_get_le16(&src);
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}
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break;
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case CODEC_ID_PCM_S16LE_PLANAR:
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for(n>>=1;n>0;n--)
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for(c=0;c<avctx->channels;c++)
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*samples++ = bytestream_get_le16(&src2[c]);
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src = src2[avctx->channels-1];
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break;
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case CODEC_ID_PCM_S16BE:
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n = buf_size >> 1;
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for(;n>0;n--) {
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@ -528,6 +540,7 @@ PCM_CODEC(CODEC_ID_PCM_U24LE, pcm_u24le);
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PCM_CODEC(CODEC_ID_PCM_U24BE, pcm_u24be);
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PCM_CODEC(CODEC_ID_PCM_S24DAUD, pcm_s24daud);
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PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
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PCM_DECODER(CODEC_ID_PCM_S16LE_PLANAR, pcm_s16le_planar);
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PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
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PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
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PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
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@ -1189,6 +1189,7 @@ void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
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break;
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case CODEC_ID_PCM_S16LE:
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case CODEC_ID_PCM_S16BE:
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case CODEC_ID_PCM_S16LE_PLANAR:
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case CODEC_ID_PCM_U16LE:
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case CODEC_ID_PCM_U16BE:
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bitrate = enc->sample_rate * enc->channels * 16;
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@ -1314,6 +1315,7 @@ int av_get_bits_per_sample(enum CodecID codec_id){
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return 8;
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case CODEC_ID_PCM_S16BE:
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case CODEC_ID_PCM_S16LE:
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case CODEC_ID_PCM_S16LE_PLANAR:
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case CODEC_ID_PCM_U16BE:
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case CODEC_ID_PCM_U16LE:
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return 16;
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@ -91,7 +91,7 @@ static int process_audio_header_elements(AVFormatContext *s)
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int inHeader = 1;
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EaDemuxContext *ea = s->priv_data;
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ByteIOContext *pb = s->pb;
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int compression_type = -1, revision = -1;
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int compression_type = -1, revision = -1, revision2 = -1;
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ea->bytes = 2;
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ea->sample_rate = -1;
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@ -136,6 +136,10 @@ static int process_audio_header_elements(AVFormatContext *s)
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av_log (s, AV_LOG_INFO, "exited audio subheader\n");
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inSubheader = 0;
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break;
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case 0xA0:
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revision2 = read_arbitary(pb);
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av_log (s, AV_LOG_INFO, "revision2 (element 0xA0) set to 0x%08x\n", revision2);
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break;
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case 0xFF:
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av_log (s, AV_LOG_INFO, "end of header block reached (within audio subheader)\n");
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inSubheader = 0;
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@ -165,10 +169,17 @@ static int process_audio_header_elements(AVFormatContext *s)
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case 1: ea->audio_codec = CODEC_ID_ADPCM_EA_R1; break;
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case 2: ea->audio_codec = CODEC_ID_ADPCM_EA_R2; break;
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case 3: ea->audio_codec = CODEC_ID_ADPCM_EA_R3; break;
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case -1: break;
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default:
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av_log(s, AV_LOG_ERROR, "unsupported stream type; revision=%i\n", revision);
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return 0;
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}
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switch (revision2) {
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case 8: ea->audio_codec = CODEC_ID_PCM_S16LE_PLANAR; break;
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default:
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av_log(s, AV_LOG_ERROR, "unsupported stream type; revision2=%i\n", revision2);
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return 0;
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}
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break;
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default:
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av_log(s, AV_LOG_ERROR, "unsupported stream type; compression_type=%i\n", compression_type);
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@ -392,6 +403,9 @@ static int ea_read_packet(AVFormatContext *s,
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if (!ea->audio_codec) {
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url_fskip(pb, chunk_size);
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break;
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} else if (ea->audio_codec == CODEC_ID_PCM_S16LE_PLANAR) {
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url_fskip(pb, 12); /* planar header */
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chunk_size -= 12;
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}
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ret = av_get_packet(pb, pkt, chunk_size);
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if (ret != chunk_size)
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