* Copyright (c) 2010 Anssi Hannula
* Copyright (c) 2010 Carl Eugen Hoyos
*
- * 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
*/
/*
* Terminology used in specification:
* data-burst - IEC61937 frame, contains header and encapsuled frame
- * burst-preambule - IEC61937 frame header, contains 16-bits words named Pa, Pb, Pc and Pd
+ * burst-preamble - IEC61937 frame header, contains 16-bit words named Pa, Pb, Pc and Pd
* burst-payload - encapsuled frame
* Pa, Pb - syncword - 0xF872, 0x4E1F
* Pc - burst-info, contains data-type (bits 0-6), error flag (bit 7), data-type-dependent info (bits 8-12)
* dependent from data-type (spaces between packets are filled by zeros)
*/
+#include <inttypes.h>
+
#include "avformat.h"
+#include "avio_internal.h"
#include "spdif.h"
#include "libavcodec/ac3.h"
#include "libavcodec/dca.h"
-#include "libavcodec/dcadata.h"
+#include "libavcodec/dca_syncwords.h"
#include "libavcodec/aacadtsdec.h"
#include "libavutil/opt.h"
} IEC61937Context;
static const AVOption options[] = {
-{ "spdif_flags", "IEC 61937 encapsulation flags", offsetof(IEC61937Context, spdif_flags), FF_OPT_TYPE_FLAGS, 0, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "spdif_flags" },
-{ "be", "output in big-endian format (for use as s16be)", 0, FF_OPT_TYPE_CONST, SPDIF_FLAG_BIGENDIAN, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "spdif_flags" },
-{ "dtshd_rate", "mux complete DTS frames in HD mode at the specified IEC958 rate (in Hz, default 0=disabled)", offsetof(IEC61937Context, dtshd_rate), FF_OPT_TYPE_INT, 0, 0, 768000, AV_OPT_FLAG_ENCODING_PARAM },
-{ "dtshd_fallback_time", "min secs to strip HD for after an overflow (-1: till the end, default 60)", offsetof(IEC61937Context, dtshd_fallback), FF_OPT_TYPE_INT, 60, -1, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM },
+{ "spdif_flags", "IEC 61937 encapsulation flags", offsetof(IEC61937Context, spdif_flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "spdif_flags" },
+{ "be", "output in big-endian format (for use as s16be)", 0, AV_OPT_TYPE_CONST, {.i64 = SPDIF_FLAG_BIGENDIAN}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "spdif_flags" },
+{ "dtshd_rate", "mux complete DTS frames in HD mode at the specified IEC958 rate (in Hz, default 0=disabled)", offsetof(IEC61937Context, dtshd_rate), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 768000, AV_OPT_FLAG_ENCODING_PARAM },
+{ "dtshd_fallback_time", "min secs to strip HD for after an overflow (-1: till the end, default 60)", offsetof(IEC61937Context, dtshd_fallback), AV_OPT_TYPE_INT, {.i64 = 60}, -1, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM },
{ NULL },
};
-static const AVClass class = { "spdif", av_default_item_name, options, LIBAVUTIL_VERSION_INT };
+static const AVClass class = {
+ .class_name = "spdif",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
static int spdif_header_ac3(AVFormatContext *s, AVPacket *pkt)
{
* DTS type IV (DTS-HD) can be transmitted with various frame repetition
* periods; longer repetition periods allow for longer packets and therefore
* higher bitrate. Longer repetition periods mean that the constant bitrate of
- * the outputted IEC 61937 stream is higher.
+ * the output IEC 61937 stream is higher.
* The repetition period is measured in IEC 60958 frames (4 bytes).
*/
static int spdif_dts4_subtype(int period)
}
ctx->out_bytes = sizeof(dtshd_start_code) + 2 + pkt_size;
- ctx->length_code = ctx->out_bytes;
+
+ /* Align so that (length_code & 0xf) == 0x8. This is reportedly needed
+ * with some receivers, but the exact requirement is unconfirmed. */
+ ctx->length_code = FFALIGN(ctx->out_bytes + 0x8, 0x10) - 0x8;
av_fast_malloc(&ctx->hd_buf, &ctx->hd_buf_size, ctx->out_bytes);
if (!ctx->hd_buf)
return AVERROR_INVALIDDATA;
switch (syncword_dts) {
- case DCA_MARKER_RAW_BE:
+ case DCA_SYNCWORD_CORE_BE:
blocks = (AV_RB16(pkt->data + 4) >> 2) & 0x7f;
core_size = ((AV_RB24(pkt->data + 5) >> 4) & 0x3fff) + 1;
- sample_rate = dca_sample_rates[(pkt->data[8] >> 2) & 0x0f];
+ sample_rate = avpriv_dca_sample_rates[(pkt->data[8] >> 2) & 0x0f];
break;
- case DCA_MARKER_RAW_LE:
+ case DCA_SYNCWORD_CORE_LE:
blocks = (AV_RL16(pkt->data + 4) >> 2) & 0x7f;
ctx->extra_bswap = 1;
break;
- case DCA_MARKER_14B_BE:
+ case DCA_SYNCWORD_CORE_14B_BE:
blocks =
(((pkt->data[5] & 0x07) << 4) | ((pkt->data[6] & 0x3f) >> 2));
break;
- case DCA_MARKER_14B_LE:
+ case DCA_SYNCWORD_CORE_14B_LE:
blocks =
(((pkt->data[4] & 0x07) << 4) | ((pkt->data[7] & 0x3f) >> 2));
ctx->extra_bswap = 1;
break;
- case DCA_HD_MARKER:
+ case DCA_SYNCWORD_SUBSTREAM:
/* We only handle HD frames that are paired with core. However,
sometimes DTS-HD streams with core have a stray HD frame without
core in the beginning of the stream. */
av_log(s, AV_LOG_ERROR, "stray DTS-HD frame\n");
return AVERROR_INVALIDDATA;
default:
- av_log(s, AV_LOG_ERROR, "bad DTS syncword 0x%x\n", syncword_dts);
+ av_log(s, AV_LOG_ERROR, "bad DTS syncword 0x%"PRIx32"\n", syncword_dts);
return AVERROR_INVALIDDATA;
}
blocks++;
* discs and dts-in-wav. */
ctx->use_preamble = 0;
} else if (ctx->out_bytes > ctx->pkt_offset - BURST_HEADER_SIZE) {
- av_log_ask_for_sample(s, "Unrecognized large DTS frame.");
+ avpriv_request_sample(s, "Unrecognized large DTS frame");
/* This will fail with a "bitrate too high" in the caller */
}
static const enum IEC61937DataType mpeg_data_type[2][3] = {
// LAYER1 LAYER2 LAYER3
- { IEC61937_MPEG2_LAYER1_LSF, IEC61937_MPEG2_LAYER2_LSF, IEC61937_MPEG2_LAYER3_LSF },//MPEG2 LSF
- { IEC61937_MPEG1_LAYER1, IEC61937_MPEG1_LAYER23, IEC61937_MPEG1_LAYER23 }, //MPEG1
+ { IEC61937_MPEG2_LAYER1_LSF, IEC61937_MPEG2_LAYER2_LSF, IEC61937_MPEG2_LAYER3_LSF }, // MPEG-2 LSF
+ { IEC61937_MPEG1_LAYER1, IEC61937_MPEG1_LAYER23, IEC61937_MPEG1_LAYER23 }, // MPEG-1
};
static int spdif_header_mpeg(AVFormatContext *s, AVPacket *pkt)
ctx->data_type = mpeg_data_type [version & 1][layer];
ctx->pkt_offset = spdif_mpeg_pkt_offset[version & 1][layer];
}
- // TODO Data type dependant info (normal/karaoke, dynamic range control)
+ // TODO Data type dependent info (normal/karaoke, dynamic range control)
return 0;
}
int ret;
init_get_bits(&gbc, pkt->data, AAC_ADTS_HEADER_SIZE * 8);
- ret = ff_aac_parse_header(&gbc, &hdr);
+ ret = avpriv_aac_parse_header(&gbc, &hdr);
if (ret < 0) {
av_log(s, AV_LOG_ERROR, "Wrong AAC file format\n");
return AVERROR_INVALIDDATA;
ctx->data_type = IEC61937_MPEG2_AAC_LSF_4096;
break;
default:
- av_log(s, AV_LOG_ERROR, "%i samples in AAC frame not supported\n",
- hdr.samples);
+ av_log(s, AV_LOG_ERROR,
+ "%"PRIu32" samples in AAC frame not supported\n", hdr.samples);
return AVERROR(EINVAL);
}
//TODO Data type dependent info (LC profile/SBR)
{
IEC61937Context *ctx = s->priv_data;
int mat_code_length = 0;
- const char mat_end_code[16] = { 0xC3, 0xC2, 0xC0, 0xC4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x97, 0x11 };
+ static const char mat_end_code[16] = { 0xC3, 0xC2, 0xC0, 0xC4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x97, 0x11 };
if (!ctx->hd_buf_count) {
- const char mat_start_code[20] = { 0x07, 0x9E, 0x00, 0x03, 0x84, 0x01, 0x01, 0x01, 0x80, 0x00, 0x56, 0xA5, 0x3B, 0xF4, 0x81, 0x83, 0x49, 0x80, 0x77, 0xE0 };
+ static const char mat_start_code[20] = { 0x07, 0x9E, 0x00, 0x03, 0x84, 0x01, 0x01, 0x01, 0x80, 0x00, 0x56, 0xA5, 0x3B, 0xF4, 0x81, 0x83, 0x49, 0x80, 0x77, 0xE0 };
mat_code_length = sizeof(mat_start_code) + BURST_HEADER_SIZE;
memcpy(ctx->hd_buf, mat_start_code, sizeof(mat_start_code));
} else if (ctx->hd_buf_count == 12) {
- const char mat_middle_code[12] = { 0xC3, 0xC1, 0x42, 0x49, 0x3B, 0xFA, 0x82, 0x83, 0x49, 0x80, 0x77, 0xE0 };
+ static const char mat_middle_code[12] = { 0xC3, 0xC1, 0x42, 0x49, 0x3B, 0xFA, 0x82, 0x83, 0x49, 0x80, 0x77, 0xE0 };
mat_code_length = sizeof(mat_middle_code) + MAT_MIDDLE_CODE_OFFSET;
memcpy(&ctx->hd_buf[12 * TRUEHD_FRAME_OFFSET - BURST_HEADER_SIZE + MAT_MIDDLE_CODE_OFFSET],
mat_middle_code, sizeof(mat_middle_code));
if (pkt->size > TRUEHD_FRAME_OFFSET - mat_code_length) {
/* if such frames exist, we'd need some more complex logic to
* distribute the TrueHD frames in the MAT frame */
- av_log(s, AV_LOG_ERROR, "TrueHD frame too big, %d bytes\n", pkt->size);
- av_log_ask_for_sample(s, NULL);
- return AVERROR_INVALIDDATA;
+ avpriv_request_sample(s, "Too large TrueHD frame of %d bytes",
+ pkt->size);
+ return AVERROR_PATCHWELCOME;
}
memcpy(&ctx->hd_buf[ctx->hd_buf_count * TRUEHD_FRAME_OFFSET - BURST_HEADER_SIZE + mat_code_length],
{
IEC61937Context *ctx = s->priv_data;
- switch (s->streams[0]->codec->codec_id) {
- case CODEC_ID_AC3:
+ switch (s->streams[0]->codecpar->codec_id) {
+ case AV_CODEC_ID_AC3:
ctx->header_info = spdif_header_ac3;
break;
- case CODEC_ID_EAC3:
+ case AV_CODEC_ID_EAC3:
ctx->header_info = spdif_header_eac3;
break;
- case CODEC_ID_MP1:
- case CODEC_ID_MP2:
- case CODEC_ID_MP3:
+ case AV_CODEC_ID_MP1:
+ case AV_CODEC_ID_MP2:
+ case AV_CODEC_ID_MP3:
ctx->header_info = spdif_header_mpeg;
break;
- case CODEC_ID_DTS:
+ case AV_CODEC_ID_DTS:
ctx->header_info = spdif_header_dts;
break;
- case CODEC_ID_AAC:
+ case AV_CODEC_ID_AAC:
ctx->header_info = spdif_header_aac;
break;
- case CODEC_ID_TRUEHD:
+ case AV_CODEC_ID_TRUEHD:
ctx->header_info = spdif_header_truehd;
ctx->hd_buf = av_malloc(MAT_FRAME_SIZE);
if (!ctx->hd_buf)
return AVERROR(ENOMEM);
break;
default:
- av_log(s, AV_LOG_ERROR, "codec not supported\n");
+ avpriv_report_missing_feature(s, "Codec %d",
+ s->streams[0]->codecpar->codec_id);
return AVERROR_PATCHWELCOME;
}
return 0;
}
static av_always_inline void spdif_put_16(IEC61937Context *ctx,
- ByteIOContext *pb, unsigned int val)
+ AVIOContext *pb, unsigned int val)
{
if (ctx->spdif_flags & SPDIF_FLAG_BIGENDIAN)
- put_be16(pb, val);
+ avio_wb16(pb, val);
else
- put_le16(pb, val);
+ avio_wl16(pb, val);
}
static int spdif_write_packet(struct AVFormatContext *s, AVPacket *pkt)
}
if (ctx->extra_bswap ^ (ctx->spdif_flags & SPDIF_FLAG_BIGENDIAN)) {
- put_buffer(s->pb, ctx->out_buf, ctx->out_bytes & ~1);
+ avio_write(s->pb, ctx->out_buf, ctx->out_bytes & ~1);
} else {
- av_fast_malloc(&ctx->buffer, &ctx->buffer_size, ctx->out_bytes + FF_INPUT_BUFFER_PADDING_SIZE);
+ av_fast_malloc(&ctx->buffer, &ctx->buffer_size, ctx->out_bytes + AV_INPUT_BUFFER_PADDING_SIZE);
if (!ctx->buffer)
return AVERROR(ENOMEM);
ff_spdif_bswap_buf16((uint16_t *)ctx->buffer, (uint16_t *)ctx->out_buf, ctx->out_bytes >> 1);
- put_buffer(s->pb, ctx->buffer, ctx->out_bytes & ~1);
+ avio_write(s->pb, ctx->buffer, ctx->out_bytes & ~1);
}
/* a final lone byte has to be MSB aligned */
if (ctx->out_bytes & 1)
spdif_put_16(ctx, s->pb, ctx->out_buf[ctx->out_bytes - 1] << 8);
- put_nbyte(s->pb, 0, padding);
+ ffio_fill(s->pb, 0, padding);
av_log(s, AV_LOG_DEBUG, "type=%x len=%i pkt_offset=%i\n",
ctx->data_type, ctx->out_bytes, ctx->pkt_offset);
- put_flush_packet(s->pb);
return 0;
}
AVOutputFormat ff_spdif_muxer = {
- "spdif",
- NULL_IF_CONFIG_SMALL("IEC 61937 (used on S/PDIF - IEC958)"),
- NULL,
- "spdif",
- sizeof(IEC61937Context),
- CODEC_ID_AC3,
- CODEC_ID_NONE,
- spdif_write_header,
- spdif_write_packet,
- spdif_write_trailer,
- .flags = AVFMT_NOTIMESTAMPS,
- .priv_class = &class,
+ .name = "spdif",
+ .long_name = NULL_IF_CONFIG_SMALL("IEC 61937 (used on S/PDIF - IEC958)"),
+ .extensions = "spdif",
+ .priv_data_size = sizeof(IEC61937Context),
+ .audio_codec = AV_CODEC_ID_AC3,
+ .video_codec = AV_CODEC_ID_NONE,
+ .write_header = spdif_write_header,
+ .write_packet = spdif_write_packet,
+ .write_trailer = spdif_write_trailer,
+ .flags = AVFMT_NOTIMESTAMPS,
+ .priv_class = &class,
};
projects / ffmpeg / blobdiff