avformat/dvenc: support muxing dvcprohd
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93414ce831
commit
eafa8e8592
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@ -28,7 +28,6 @@
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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*/
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#include <time.h>
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#include <time.h>
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#include <stdarg.h>
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#include "avformat.h"
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#include "avformat.h"
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#include "internal.h"
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#include "internal.h"
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@ -48,8 +47,8 @@ struct DVMuxContext {
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AVClass *av_class;
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AVClass *av_class;
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const AVDVProfile* sys; /* current DV profile, e.g.: 525/60, 625/50 */
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const AVDVProfile* sys; /* current DV profile, e.g.: 525/60, 625/50 */
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int n_ast; /* number of stereo audio streams (up to 2) */
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int n_ast; /* number of stereo audio streams (up to 2) */
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AVStream *ast[2]; /* stereo audio streams */
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AVStream *ast[4]; /* stereo audio streams */
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AVFifoBuffer *audio_data[2]; /* FIFO for storing excessive amounts of PCM */
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AVFifoBuffer *audio_data[4]; /* FIFO for storing excessive amounts of PCM */
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int frames; /* current frame number */
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int frames; /* current frame number */
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int64_t start_time; /* recording start time */
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int64_t start_time; /* recording start time */
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int has_audio; /* frame under construction has audio */
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int has_audio; /* frame under construction has audio */
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@ -87,14 +86,12 @@ static int dv_audio_frame_size(const AVDVProfile* sys, int frame, int sample_rat
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sizeof(sys->audio_samples_dist[0]))];
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sizeof(sys->audio_samples_dist[0]))];
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}
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}
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static int dv_write_pack(enum dv_pack_type pack_id, DVMuxContext *c, uint8_t* buf, ...)
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static int dv_write_pack(enum dv_pack_type pack_id, DVMuxContext *c, uint8_t* buf, int channel, int seq)
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{
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{
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struct tm tc;
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struct tm tc;
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time_t ct;
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time_t ct;
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uint32_t timecode;
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uint32_t timecode;
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va_list ap;
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int audio_type = 0;
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int audio_type = 0;
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int channel;
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buf[0] = (uint8_t)pack_id;
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buf[0] = (uint8_t)pack_id;
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switch (pack_id) {
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switch (pack_id) {
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@ -104,8 +101,6 @@ static int dv_write_pack(enum dv_pack_type pack_id, DVMuxContext *c, uint8_t* bu
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AV_WB32(buf + 1, timecode);
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AV_WB32(buf + 1, timecode);
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break;
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break;
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case dv_audio_source: /* AAUX source pack */
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case dv_audio_source: /* AAUX source pack */
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va_start(ap, buf);
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channel = va_arg(ap, int);
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if (c->ast[channel]->codecpar->sample_rate == 44100) {
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if (c->ast[channel]->codecpar->sample_rate == 44100) {
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audio_type = 1;
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audio_type = 1;
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} else if (c->ast[channel]->codecpar->sample_rate == 32000)
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} else if (c->ast[channel]->codecpar->sample_rate == 32000)
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@ -118,17 +113,16 @@ static int dv_write_pack(enum dv_pack_type pack_id, DVMuxContext *c, uint8_t* bu
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buf[2] = (0 << 7) | /* multi-stereo */
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buf[2] = (0 << 7) | /* multi-stereo */
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(0 << 5) | /* #of audio channels per block: 0 -- 1 channel */
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(0 << 5) | /* #of audio channels per block: 0 -- 1 channel */
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(0 << 4) | /* pair bit: 0 -- one pair of channels */
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(0 << 4) | /* pair bit: 0 -- one pair of channels */
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!!va_arg(ap, int); /* audio mode */
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(seq >= c->sys->difseg_size/2); /* audio mode (1st or 2nd channel) */
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buf[3] = (1 << 7) | /* res */
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buf[3] = (1 << 7) | /* res */
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(1 << 6) | /* multi-language flag */
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(1 << 6) | /* multi-language flag */
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(c->sys->dsf << 5) | /* system: 60fields/50fields */
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(c->sys->dsf << 5) | /* system: 60fields/50fields */
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(c->sys->n_difchan & 2); /* definition: 0 -- 25Mbps, 2 -- 50Mbps */
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(DV_PROFILE_IS_HD(c->sys) ? 0x3 : c->sys->video_stype ? 2 : 0); /* stype */
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buf[4] = (1 << 7) | /* emphasis: 1 -- off */
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buf[4] = (1 << 7) | /* emphasis: 1 -- off */
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(0 << 6) | /* emphasis time constant: 0 -- reserved */
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(0 << 6) | /* emphasis time constant: 0 -- reserved */
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(audio_type << 3) | /* frequency: 0 -- 48kHz, 1 -- 44,1kHz, 2 -- 32kHz */
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(audio_type << 3) | /* frequency: 0 -- 48kHz, 1 -- 44,1kHz, 2 -- 32kHz */
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0; /* quantization: 0 -- 16-bit linear, 1 -- 12-bit nonlinear */
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0; /* quantization: 0 -- 16-bit linear, 1 -- 12-bit nonlinear */
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va_end(ap);
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break;
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break;
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case dv_audio_control:
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case dv_audio_control:
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buf[1] = (0 << 6) | /* copy protection: 0 -- unrestricted */
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buf[1] = (0 << 6) | /* copy protection: 0 -- unrestricted */
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@ -192,7 +186,7 @@ static void dv_inject_audio(DVMuxContext *c, int channel, uint8_t* frame_ptr)
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for (i = 0; i < c->sys->difseg_size; i++) {
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for (i = 0; i < c->sys->difseg_size; i++) {
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frame_ptr += 6 * 80; /* skip DIF segment header */
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frame_ptr += 6 * 80; /* skip DIF segment header */
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for (j = 0; j < 9; j++) {
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for (j = 0; j < 9; j++) {
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dv_write_pack(dv_aaux_packs_dist[i][j], c, &frame_ptr[3], channel, i >= c->sys->difseg_size/2);
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dv_write_pack(dv_aaux_packs_dist[i][j], c, &frame_ptr[3], channel, i);
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for (d = 8; d < 80; d+=2) {
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for (d = 8; d < 80; d+=2) {
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of = c->sys->audio_shuffle[i][j] + (d - 8)/2 * c->sys->audio_stride;
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of = c->sys->audio_shuffle[i][j] + (d - 8)/2 * c->sys->audio_stride;
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if (of*2 >= size)
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if (of*2 >= size)
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@ -210,27 +204,28 @@ static void dv_inject_metadata(DVMuxContext *c, uint8_t* frame)
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{
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{
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int j, k;
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int j, k;
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uint8_t* buf;
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uint8_t* buf;
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int seq = 0;
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for (buf = frame; buf < frame + c->sys->frame_size; buf += 150 * 80) {
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for (buf = frame; buf < frame + c->sys->frame_size; buf += 150 * 80, seq++) {
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/* DV subcode: 2nd and 3d DIFs */
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/* DV subcode: 2nd and 3d DIFs */
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for (j = 80; j < 80 * 3; j += 80) {
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for (j = 80; j < 80 * 3; j += 80) {
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for (k = 6; k < 6 * 8; k += 8)
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for (k = 6; k < 6 * 8; k += 8)
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dv_write_pack(dv_timecode, c, &buf[j+k]);
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dv_write_pack(dv_timecode, c, &buf[j+k], 0, seq);
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if (((long)(buf-frame)/(c->sys->frame_size/(c->sys->difseg_size*c->sys->n_difchan))%c->sys->difseg_size) > 5) { /* FIXME: is this really needed ? */
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if (((long)(buf-frame)/(c->sys->frame_size/(c->sys->difseg_size*c->sys->n_difchan))%c->sys->difseg_size) > 5) { /* FIXME: is this really needed ? */
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dv_write_pack(dv_video_recdate, c, &buf[j+14]);
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dv_write_pack(dv_video_recdate, c, &buf[j+14], 0, seq);
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dv_write_pack(dv_video_rectime, c, &buf[j+22]);
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dv_write_pack(dv_video_rectime, c, &buf[j+22], 0, seq);
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dv_write_pack(dv_video_recdate, c, &buf[j+38]);
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dv_write_pack(dv_video_recdate, c, &buf[j+38], 0, seq);
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dv_write_pack(dv_video_rectime, c, &buf[j+46]);
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dv_write_pack(dv_video_rectime, c, &buf[j+46], 0, seq);
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}
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}
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}
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}
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/* DV VAUX: 4th, 5th and 6th 3DIFs */
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/* DV VAUX: 4th, 5th and 6th 3DIFs */
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for (j = 80*3 + 3; j < 80*6; j += 80) {
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for (j = 80*3 + 3; j < 80*6; j += 80) {
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dv_write_pack(dv_video_recdate, c, &buf[j+5*2]);
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dv_write_pack(dv_video_recdate, c, &buf[j+5* 2], 0, seq);
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dv_write_pack(dv_video_rectime, c, &buf[j+5*3]);
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dv_write_pack(dv_video_rectime, c, &buf[j+5* 3], 0, seq);
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dv_write_pack(dv_video_recdate, c, &buf[j+5*11]);
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dv_write_pack(dv_video_recdate, c, &buf[j+5*11], 0, seq);
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dv_write_pack(dv_video_rectime, c, &buf[j+5*12]);
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dv_write_pack(dv_video_rectime, c, &buf[j+5*12], 0, seq);
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}
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}
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}
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}
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}
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}
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@ -307,11 +302,11 @@ static DVMuxContext* dv_init_mux(AVFormatContext* s)
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int i;
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int i;
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/* we support at most 1 video and 2 audio streams */
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/* we support at most 1 video and 2 audio streams */
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if (s->nb_streams > 3)
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if (s->nb_streams > 5)
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return NULL;
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return NULL;
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c->n_ast = 0;
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c->n_ast = 0;
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c->ast[0] = c->ast[1] = NULL;
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c->ast[0] = c->ast[1] = c->ast[2] = c->ast[3] = NULL;
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/* We have to sort out where audio and where video stream is */
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/* We have to sort out where audio and where video stream is */
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for (i=0; i<s->nb_streams; i++) {
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for (i=0; i<s->nb_streams; i++) {
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@ -355,8 +350,9 @@ static DVMuxContext* dv_init_mux(AVFormatContext* s)
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goto bail_out;
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goto bail_out;
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}
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}
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if ((c->n_ast > 1) && (c->sys->n_difchan < 2)) {
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if (((c->n_ast > 1) && (c->sys->n_difchan < 2)) ||
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/* only 1 stereo pair is allowed in 25Mbps mode */
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((c->n_ast > 2) && (c->sys->n_difchan < 4))) {
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/* only 2 stereo pairs allowed in 50Mbps mode */
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goto bail_out;
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goto bail_out;
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}
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}
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