* a code. -1 for timer never set. */
int count_sustain_expired;
+ int rate; /**< sampling rate */
int _ana_snb; /**< used in the analyze mode tone generator */
} hdcd_state;
int cdt_ms; /**< code detect timer period in ms */
int disable_autoconvert; /**< disable any format conversion or resampling in the filter graph */
+
+ int bits_per_sample; /**< bits per sample 16, 20, or 24 */
/* end AVOption members */
/** config_input() and config_output() scan links for any resampling
#define A AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
static const AVOption hdcd_options[] = {
{ "disable_autoconvert", "Disable any format conversion or resampling in the filter graph.",
- OFFSET(disable_autoconvert), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, A },
+ OFFSET(disable_autoconvert), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, A },
{ "process_stereo", "Process stereo channels together. Only apply target_gain when both channels match.",
OFFSET(process_stereo), AV_OPT_TYPE_BOOL, { .i64 = HDCD_PROCESS_STEREO_DEFAULT }, 0, 1, A },
{ "cdt_ms", "Code detect timer period in ms.",
{ "pe", HDCD_ANA_PE_DESC, 0, AV_OPT_TYPE_CONST, {.i64=HDCD_ANA_PE}, 0, 0, A, "analyze_mode" },
{ "cdt", HDCD_ANA_CDT_DESC, 0, AV_OPT_TYPE_CONST, {.i64=HDCD_ANA_CDT}, 0, 0, A, "analyze_mode" },
{ "tgm", HDCD_ANA_TGM_DESC, 0, AV_OPT_TYPE_CONST, {.i64=HDCD_ANA_TGM}, 0, 0, A, "analyze_mode" },
+ { "bits_per_sample", "Valid bits per sample (location of the true LSB).",
+ OFFSET(bits_per_sample), AV_OPT_TYPE_INT, { .i64=16 }, 16, 24, A, "bits_per_sample"},
+ { "16", "16-bit (in s32 or s16)", 0, AV_OPT_TYPE_CONST, {.i64=16}, 0, 0, A, "bits_per_sample" },
+ { "20", "20-bit (in s32)", 0, AV_OPT_TYPE_CONST, {.i64=20}, 0, 0, A, "bits_per_sample" },
+ { "24", "24-bit (in s32)", 0, AV_OPT_TYPE_CONST, {.i64=24}, 0, 0, A, "bits_per_sample" },
{NULL}
};
static void hdcd_reset(hdcd_state *state, unsigned rate, unsigned cdt_ms)
{
int i;
+ uint64_t sustain_reset = (uint64_t)cdt_ms * rate / 1000;
state->window = 0;
state->readahead = 32;
state->arg = 0;
state->control = 0;
-
state->running_gain = 0;
-
+ state->sustain_reset = sustain_reset;
state->sustain = 0;
- state->sustain_reset = cdt_ms*rate/1000;
state->code_counterA = 0;
state->code_counterA_almost = 0;
state->max_gain = 0;
state->count_sustain_expired = -1;
+ state->rate = rate;
state->_ana_snb = 0;
}
-/** update the user info/counters */
-static void hdcd_update_info(hdcd_state *state)
-{
- if (state->control & 16) state->count_peak_extend++;
- if (state->control & 32) state->count_transient_filter++;
- state->gain_counts[state->control & 15]++;
- state->max_gain = FFMAX(state->max_gain, (state->control & 15));
-}
-
-typedef enum {
- HDCD_CODE_NONE=0,
- HDCD_CODE_A,
- HDCD_CODE_A_ALMOST,
- HDCD_CODE_B,
- HDCD_CODE_B_CHECKFAIL,
- HDCD_CODE_EXPECT_A,
- HDCD_CODE_EXPECT_B,
-} hdcd_code_result;
-
-static hdcd_code_result hdcd_code(const uint32_t bits, unsigned char *code)
+static int hdcd_integrate(HDCDContext *ctx, hdcd_state *states, int channels, int *flag, const int32_t *samples, int count, int stride)
{
- if ((bits & 0x0fa00500) == 0x0fa00500) {
- /* A: 8-bit code 0x7e0fa005[..] */
- if ((bits & 0xc8) == 0) {
- /* [..pt gggg]
- * 0x0fa005[..] -> 0b[00.. 0...], gain part doubled */
- *code = (bits & 255) + (bits & 7);
- return HDCD_CODE_A;
- } else
- return HDCD_CODE_A_ALMOST; /* one of bits 3, 6, or 7 was not 0 */
- } else if ((bits & 0xa0060000) == 0xa0060000) {
- /* B: 8-bit code, 8-bit XOR check, 0x7e0fa006[....] */
- if (((bits ^ (~bits >> 8 & 255)) & 0xffff00ff) == 0xa0060000) {
- /* check: [..pt gggg ~(..pt gggg)]
- * 0xa006[....] -> 0b[.... .... .... .... ] */
- *code = bits >> 8 & 255;
- return HDCD_CODE_B;
- } else
- return HDCD_CODE_B_CHECKFAIL; /* XOR check failed */
- }
- if (bits == 0x7e0fa005)
- return HDCD_CODE_EXPECT_A;
- else if (bits == 0x7e0fa006)
- return HDCD_CODE_EXPECT_B;
-
- return HDCD_CODE_NONE;
-}
-
-static int hdcd_integrate(HDCDContext *ctx, hdcd_state *state, int *flag, const int32_t *samples, int count, int stride)
-{
- uint32_t bits = 0;
- int result = FFMIN(state->readahead, count);
- int i;
+ uint32_t bits[HDCD_MAX_CHANNELS];
+ int result = count;
+ int i, j, f;
*flag = 0;
- for (i = result - 1; i >= 0; i--) {
- bits |= (*samples & 1) << i; /* might be better as a conditional? */
- samples += stride;
- }
-
- state->window = (state->window << result) | bits;
- state->readahead -= result;
- if (state->readahead > 0)
- return result;
-
- bits = (state->window ^ state->window >> 5 ^ state->window >> 23);
-
- if (state->arg) {
- switch (hdcd_code(bits, &state->control)) {
- case HDCD_CODE_A:
- *flag = 1;
- state->code_counterA++;
- break;
- case HDCD_CODE_B:
- *flag = 1;
- state->code_counterB++;
- break;
- case HDCD_CODE_A_ALMOST:
- state->code_counterA_almost++;
- av_log(ctx->fctx, AV_LOG_VERBOSE,
- "hdcd error: Control A almost: 0x%02x near %d\n", bits & 0xff, ctx->sample_count);
- break;
- case HDCD_CODE_B_CHECKFAIL:
- state->code_counterB_checkfails++;
- av_log(ctx->fctx, AV_LOG_VERBOSE,
- "hdcd error: Control B check failed: 0x%04x (0x%02x vs 0x%02x) near %d\n", bits & 0xffff, (bits & 0xff00) >> 8, ~bits & 0xff, ctx->sample_count);
- break;
- case HDCD_CODE_NONE:
- state->code_counterC_unmatched++;
- av_log(ctx->fctx, AV_LOG_VERBOSE,
- "hdcd error: Unmatched code: 0x%08x near %d\n", bits, ctx->sample_count);
- default:
- av_log(ctx->fctx, AV_LOG_INFO,
- "hdcd error: Unexpected return value from hdcd_code()\n");
- av_assert0(0); /* die */
- }
- if (*flag) hdcd_update_info(state);
- state->arg = 0;
- }
- if (bits == 0x7e0fa005 || bits == 0x7e0fa006) {
- /* 0x7e0fa00[.]-> [0b0101 or 0b0110] */
- state->readahead = (bits & 3) * 8;
- state->arg = 1;
- state->code_counterC++;
- } else {
- if (bits)
- state->readahead = readaheadtab[bits & 0xff];
- else
- state->readahead = 31; /* ffwd over digisilence */
- }
- return result;
-}
-
-static int hdcd_integrate_stereo(HDCDContext *ctx, int *flag, const int32_t *samples, int count)
-{
- uint32_t bits[2] = {0, 0};
- int result;
- int i;
- *flag = 0;
+ memset(bits, 0, sizeof(bits));
+ if (stride < channels) stride = channels;
- /* result = min(count, s0ra, s1ra) */
- result = FFMIN(ctx->state[0].readahead, count);
- result = FFMIN(ctx->state[1].readahead, result);
+ for (i = 0; i < channels; i++)
+ result = FFMIN(states[i].readahead, result);
- for (i = result - 1; i >= 0; i--) {
- bits[0] |= (*(samples++) & 1) << i;
- bits[1] |= (*(samples++) & 1) << i;
+ for (j = result - 1; j >= 0; j--) {
+ for (i = 0; i < channels; i++)
+ bits[i] |= (*(samples++) & 1) << j;
+ samples += stride - channels;
}
- for (i = 0; i < 2; i++) {
- ctx->state[i].window = (ctx->state[i].window << result) | bits[i];
- ctx->state[i].readahead -= result;
-
- if (ctx->state[i].readahead == 0) {
- uint32_t wbits = (ctx->state[i].window ^ ctx->state[i].window >> 5 ^ ctx->state[i].window >> 23);
- if (ctx->state[i].arg) {
- switch (hdcd_code(wbits, &ctx->state[i].control)) {
- case HDCD_CODE_A:
- *flag |= i+1;
- ctx->state[i].code_counterA++;
- break;
- case HDCD_CODE_B:
- *flag |= i+1;
- ctx->state[i].code_counterB++;
- break;
- case HDCD_CODE_A_ALMOST:
- ctx->state[i].code_counterA_almost++;
+ for (i = 0; i < channels; i++) {
+ states[i].window = (states[i].window << result) | bits[i];
+ states[i].readahead -= result;
+
+ if (states[i].readahead == 0) {
+ uint32_t wbits = (uint32_t)(states[i].window ^ states[i].window >> 5 ^ states[i].window >> 23);
+ if (states[i].arg) {
+ f = 0;
+ if ((wbits & 0x0fa00500) == 0x0fa00500) {
+ /* A: 8-bit code 0x7e0fa005[..] */
+ if ((wbits & 0xc8) == 0) {
+ /* [..pt gggg]
+ * 0x0fa005[..] -> 0b[00.. 0...], gain part doubled (shifted left 1) */
+ states[i].control = (wbits & 255) + (wbits & 7);
+ f = 1;
+ states[i].code_counterA++;
+ } else {
+ /* one of bits 3, 6, or 7 was not 0 */
+ states[i].code_counterA_almost++;
av_log(ctx->fctx, AV_LOG_VERBOSE,
"hdcd error: Control A almost: 0x%02x near %d\n", wbits & 0xff, ctx->sample_count);
- break;
- case HDCD_CODE_B_CHECKFAIL:
- ctx->state[i].code_counterB_checkfails++;
+ }
+ } else if ((wbits & 0xa0060000) == 0xa0060000) {
+ /* B: 8-bit code, 8-bit XOR check, 0x7e0fa006[....] */
+ if (((wbits ^ (~wbits >> 8 & 255)) & 0xffff00ff) == 0xa0060000) {
+ /* check: [..pt gggg ~(..pt gggg)]
+ * 0xa006[....] -> 0b[.... .... .... .... ] */
+ states[i].control = wbits >> 8 & 255;
+ f = 1;
+ states[i].code_counterB++;
+ } else {
+ /* XOR check failed */
+ states[i].code_counterB_checkfails++;
av_log(ctx->fctx, AV_LOG_VERBOSE,
"hdcd error: Control B check failed: 0x%04x (0x%02x vs 0x%02x) near %d\n", wbits & 0xffff, (wbits & 0xff00) >> 8, ~wbits & 0xff, ctx->sample_count);
- break;
- case HDCD_CODE_NONE:
- ctx->state[i].code_counterC_unmatched++;
- av_log(ctx->fctx, AV_LOG_VERBOSE,
- "hdcd error: Unmatched code: 0x%08x near %d\n", wbits, ctx->sample_count);
- default:
- av_log(ctx->fctx, AV_LOG_INFO,
- "hdcd error: Unexpected return value from hdcd_code()\n");
- av_assert0(0); /* die */
+ }
+ }
+ if (f) {
+ *flag |= (1<<i);
+ /* update counters */
+ if (states[i].control & 16) states[i].count_peak_extend++;
+ if (states[i].control & 32) states[i].count_transient_filter++;
+ states[i].gain_counts[states[i].control & 15]++;
+ states[i].max_gain = FFMAX(states[i].max_gain, (states[i].control & 15));
}
- if (*flag&(i+1)) hdcd_update_info(&ctx->state[i]);
- ctx->state[i].arg = 0;
+ states[i].arg = 0;
}
if (wbits == 0x7e0fa005 || wbits == 0x7e0fa006) {
/* 0x7e0fa00[.]-> [0b0101 or 0b0110] */
- ctx->state[i].readahead = (wbits & 3) * 8;
- ctx->state[i].arg = 1;
- ctx->state[i].code_counterC++;
+ states[i].readahead = (wbits & 3) * 8;
+ states[i].arg = 1;
+ states[i].code_counterC++;
} else {
if (wbits)
- ctx->state[i].readahead = readaheadtab[wbits & 0xff];
+ states[i].readahead = readaheadtab[wbits & 0xff];
else
- ctx->state[i].readahead = 31; /* ffwd over digisilence */
+ states[i].readahead = 31; /* ffwd over digisilence */
}
}
}
return result;
}
-static void hdcd_sustain_reset(hdcd_state *state)
-{
- state->sustain = state->sustain_reset;
- /* if this is the first reset then change
- * from never set, to never expired */
- if (state->count_sustain_expired == -1)
- state->count_sustain_expired = 0;
-}
-
-static int hdcd_scan(HDCDContext *ctx, hdcd_state *state, const int32_t *samples, int max, int stride)
-{
- int result;
- int cdt_active = 0;
- /* code detect timer */
- if (state->sustain > 0) {
- cdt_active = 1;
- if (state->sustain <= max) {
- state->control = 0;
- max = state->sustain;
- }
- state->sustain -= max;
- }
-
- result = 0;
- while (result < max) {
- int flag;
- int consumed = hdcd_integrate(ctx, state, &flag, samples, max - result, stride);
- result += consumed;
- if (flag > 0) {
- /* reset timer if code detected in channel */
- hdcd_sustain_reset(state);
- break;
- }
- samples += consumed * stride;
- }
- /* code detect timer expired */
- if (cdt_active && state->sustain == 0)
- state->count_sustain_expired++;
-
- return result;
-}
-
-static int hdcd_scan_stereo(HDCDContext *ctx, const int32_t *samples, int max)
+static int hdcd_scan(HDCDContext *ctx, hdcd_state *states, int channels, const int32_t *samples, int max, int stride)
{
int result;
int i;
- int cdt_active[2] = {0, 0};
+ int cdt_active[HDCD_MAX_CHANNELS];
+ memset(cdt_active, 0, sizeof(cdt_active));
+
+ if (stride < channels) stride = channels;
/* code detect timers for each channel */
- for(i=0; i<2; i++) {
- if (ctx->state[i].sustain > 0) {
+ for(i = 0; i < channels; i++) {
+ if (states[i].sustain > 0) {
cdt_active[i] = 1;
- if (ctx->state[i].sustain <= max) {
- ctx->state[i].control = 0;
- max = ctx->state[i].sustain;
+ if (states[i].sustain <= (unsigned)max) {
+ states[i].control = 0;
+ max = states[i].sustain;
}
- ctx->state[i].sustain -= max;
+ states[i].sustain -= max;
}
}
result = 0;
while (result < max) {
int flag;
- int consumed = hdcd_integrate_stereo(ctx, &flag, samples, max - result);
+ int consumed = hdcd_integrate(ctx, states, channels, &flag, samples, max - result, stride);
result += consumed;
if (flag) {
/* reset timer if code detected in a channel */
- if (flag & 1) hdcd_sustain_reset(&ctx->state[0]);
- if (flag & 2) hdcd_sustain_reset(&ctx->state[1]);
+ for(i = 0; i < channels; i++) {
+ if (flag & (1<<i)) {
+ states[i].sustain = states[i].sustain_reset;
+ /* if this is the first reset then change
+ * from never set, to never expired */
+ if (states[i].count_sustain_expired == -1)
+ states[i].count_sustain_expired = 0;
+ }
+ }
break;
}
- samples += consumed * 2;
+ samples += consumed * stride;
}
- for(i=0; i<2; i++) {
+ for(i = 0; i < channels; i++) {
/* code detect timer expired */
- if (cdt_active[i] && ctx->state[i].sustain == 0)
- ctx->state[i].count_sustain_expired++;
+ if (cdt_active[i] && states[i].sustain == 0)
+ states[i].count_sustain_expired++;
}
return result;
/** replace audio with solid tone, but save LSBs */
static void hdcd_analyze_prepare(hdcd_state *state, int32_t *samples, int count, int stride) {
- int n;
+ int n, f = 300;
+ int so = state->rate / f;
for (n = 0; n < count * stride; n += stride) {
/* in analyze mode, the audio is replaced by a solid tone, and
* amplitude is changed to signal when the specified feature is
* bit 1: Original sample was above PE level */
int32_t save = (abs(samples[n]) - PEAK_EXT_LEVEL >= 0) ? 2 : 0; /* above PE level */
save |= samples[n] & 1; /* save LSB for HDCD packets */
- samples[n] = TONEGEN16(state->_ana_snb, 277.18, 44100, 0.1);
+ samples[n] = TONEGEN16(state->_ana_snb, f, state->rate, 0.1);
samples[n] = (samples[n] | 3) ^ ((~save) & 3);
- if (++state->_ana_snb > 0x3fffffff) state->_ana_snb = 0;
+ if (++state->_ana_snb > so) state->_ana_snb = 0;
}
}
/** encode a value in the given sample by adjusting the amplitude */
static int32_t hdcd_analyze_gen(int32_t sample, unsigned int v, unsigned int maxv)
{
- float sflt = sample, vv = v;
- vv /= maxv;
- if (vv > 1.0) vv = 1.0;
- sflt *= 1.0 + (vv * 18);
- return (int32_t)sflt;
+ static const int r = 18, m = 1024;
+ int64_t s64 = sample;
+ v = m + (v * r * m / maxv);
+ return (int32_t)(s64 * v / m);
}
/** behaves like hdcd_envelope(), but encodes processing information in
}
/** apply HDCD decoding parameters to a series of samples */
-static int hdcd_envelope(int32_t *samples, int count, int stride, int gain, int target_gain, int extend)
+static int hdcd_envelope(int32_t *samples, int count, int stride, int vbits, int gain, int target_gain, int extend)
{
- int i;
+ static const int max_asample = sizeof(peaktab) / sizeof(peaktab[0]) - 1;
int32_t *samples_end = samples + stride * count;
+ int i;
+
+ int pe_level = PEAK_EXT_LEVEL, shft = 15;
+ if (vbits != 16) {
+ pe_level = (1 << (vbits - 1)) - (0x8000 - PEAK_EXT_LEVEL);
+ shft = 32 - vbits - 1;
+ }
+ av_assert0(PEAK_EXT_LEVEL + max_asample == 0x8000);
if (extend) {
for (i = 0; i < count; i++) {
int32_t sample = samples[i * stride];
- int32_t asample = abs(sample) - PEAK_EXT_LEVEL;
+ int32_t asample = abs(sample) - pe_level;
if (asample >= 0) {
- av_assert0(asample < sizeof(peaktab));
+ av_assert0(asample <= max_asample);
sample = sample >= 0 ? peaktab[asample] : -peaktab[asample];
} else
- sample <<= 15;
+ sample <<= shft;
samples[i * stride] = sample;
}
} else {
for (i = 0; i < count; i++)
- samples[i * stride] <<= 15;
+ samples[i * stride] <<= shft;
}
if (gain <= target_gain) {
int run;
av_assert0(samples + lead * stride + stride * (count - lead) <= samples_end);
- run = hdcd_scan(ctx, state, samples + lead * stride, count - lead, stride) + lead;
+ run = hdcd_scan(ctx, state, 1, samples + lead * stride, count - lead, 0) + lead;
envelope_run = run - 1;
av_assert0(samples + envelope_run * stride <= samples_end);
if (ctx->analyze_mode)
gain = hdcd_analyze(samples, envelope_run, stride, gain, target_gain, peak_extend, ctx->analyze_mode, state->sustain, -1);
else
- gain = hdcd_envelope(samples, envelope_run, stride, gain, target_gain, peak_extend);
+ gain = hdcd_envelope(samples, envelope_run, stride, ctx->bits_per_sample, gain, target_gain, peak_extend);
samples += envelope_run * stride;
count -= envelope_run;
if (ctx->analyze_mode)
gain = hdcd_analyze(samples, lead, stride, gain, target_gain, peak_extend, ctx->analyze_mode, state->sustain, -1);
else
- gain = hdcd_envelope(samples, lead, stride, gain, target_gain, peak_extend);
+ gain = hdcd_envelope(samples, lead, stride, ctx->bits_per_sample, gain, target_gain, peak_extend);
}
state->running_gain = gain;
int envelope_run, run;
av_assert0(samples + lead * stride + stride * (count - lead) <= samples_end);
- run = hdcd_scan_stereo(ctx, samples + lead * stride, count - lead) + lead;
+ run = hdcd_scan(ctx, ctx->state, 2, samples + lead * stride, count - lead, 0) + lead;
envelope_run = run - 1;
av_assert0(samples + envelope_run * stride <= samples_end);
ctx->state[1].sustain,
(ctlret == HDCD_TG_MISMATCH) );
} else {
- gain[0] = hdcd_envelope(samples, envelope_run, stride, gain[0], ctx->val_target_gain, peak_extend[0]);
- gain[1] = hdcd_envelope(samples + 1, envelope_run, stride, gain[1], ctx->val_target_gain, peak_extend[1]);
+ gain[0] = hdcd_envelope(samples, envelope_run, stride, ctx->bits_per_sample, gain[0], ctx->val_target_gain, peak_extend[0]);
+ gain[1] = hdcd_envelope(samples + 1, envelope_run, stride, ctx->bits_per_sample, gain[1], ctx->val_target_gain, peak_extend[1]);
}
samples += envelope_run * stride;
ctx->state[1].sustain,
(ctlret == HDCD_TG_MISMATCH) );
} else {
- gain[0] = hdcd_envelope(samples, lead, stride, gain[0], ctx->val_target_gain, peak_extend[0]);
- gain[1] = hdcd_envelope(samples + 1, lead, stride, gain[1], ctx->val_target_gain, peak_extend[1]);
+ gain[0] = hdcd_envelope(samples, lead, stride, ctx->bits_per_sample, gain[0], ctx->val_target_gain, peak_extend[0]);
+ gain[1] = hdcd_envelope(samples + 1, lead, stride, ctx->bits_per_sample, gain[1], ctx->val_target_gain, peak_extend[1]);
}
}
AVFilterLink *outlink = ctx->outputs[0];
AVFrame *out;
const int16_t *in_data;
+ const int32_t *in_data32;
int32_t *out_data;
int n, c, result;
+ int a = 32 - s->bits_per_sample;
out = ff_get_audio_buffer(outlink, in->nb_samples);
if (!out) {
}
out->format = outlink->format; // is this needed?
- in_data = (int16_t*)in->data[0];
out_data = (int32_t*)out->data[0];
- for (c = n = 0; n < in->nb_samples * in->channels; n++)
- out_data[n] = in_data[n];
+ switch (inlink->format) {
+ case AV_SAMPLE_FMT_S16P:
+ for (n = 0; n < in->nb_samples; n++)
+ for (c = 0; c < in->channels; c++) {
+ in_data = (int16_t*)in->extended_data[c];
+ out_data[(n * in->channels) + c] = in_data[n];
+ }
+ break;
+ case AV_SAMPLE_FMT_S16:
+ in_data = (int16_t*)in->data[0];
+ for (n = 0; n < in->nb_samples * in->channels; n++)
+ out_data[n] = in_data[n];
+ break;
+
+ case AV_SAMPLE_FMT_S32P:
+ for (n = 0; n < in->nb_samples; n++)
+ for (c = 0; c < in->channels; c++) {
+ in_data32 = (int32_t*)in->extended_data[c];
+ out_data[(n * in->channels) + c] = in_data32[n] >> a;
+ }
+ break;
+ case AV_SAMPLE_FMT_S32:
+ in_data32 = (int32_t*)in->data[0];
+ for (n = 0; n < in->nb_samples * in->channels; n++)
+ out_data[n] = in_data32[n] >> a;
+ break;
+ }
if (s->process_stereo) {
hdcd_detect_start(&s->detect);
static int query_formats(AVFilterContext *ctx)
{
+ static const int sample_rates[] = {
+ 44100, 48000,
+ 88200, 96000,
+ 176400, 192000,
+ -1
+ };
AVFilterFormats *in_formats;
AVFilterFormats *out_formats;
- AVFilterFormats *sample_rates = NULL;
AVFilterChannelLayouts *layouts = NULL;
AVFilterLink *inlink = ctx->inputs[0];
AVFilterLink *outlink = ctx->outputs[0];
static const enum AVSampleFormat sample_fmts_in[] = {
AV_SAMPLE_FMT_S16,
+ AV_SAMPLE_FMT_S16P,
+ AV_SAMPLE_FMT_S32,
+ AV_SAMPLE_FMT_S32P,
AV_SAMPLE_FMT_NONE
};
static const enum AVSampleFormat sample_fmts_out[] = {
};
int ret;
+ ret = ff_add_channel_layout(&layouts, AV_CH_LAYOUT_MONO);
+ if (ret < 0)
+ return ret;
ret = ff_add_channel_layout(&layouts, AV_CH_LAYOUT_STEREO);
if (ret < 0)
return ret;
if (ret < 0)
return ret;
- ret = ff_add_format(&sample_rates, 44100);
- if (ret < 0)
- return AVERROR(ENOMEM);
-
- return ff_set_common_samplerates(ctx, sample_rates);
+ return
+ ff_set_common_samplerates(ctx, ff_make_format_list(sample_rates) );
}
static av_cold void uninit(AVFilterContext *ctx)
static av_cold int init(AVFilterContext *ctx)
{
HDCDContext *s = ctx->priv;
- int c;
s->sample_count = 0;
s->fctx = ctx;
s->bad_config = 0;
- hdcd_detect_reset(&s->detect);
- for (c = 0; c < HDCD_MAX_CHANNELS; c++) {
- hdcd_reset(&s->state[c], 44100, s->cdt_ms);
- }
-
- av_log(ctx, AV_LOG_VERBOSE, "CDT period: %dms (%d samples @44100Hz)\n",
- s->cdt_ms, s->cdt_ms*44100/1000 );
- av_log(ctx, AV_LOG_VERBOSE, "Process mode: %s\n",
- (s->process_stereo) ? "process stereo channels together" : "process each channel separately");
- av_log(ctx, AV_LOG_VERBOSE, "Force PE: %s\n",
- (s->force_pe) ? "on" : "off");
- av_log(ctx, AV_LOG_VERBOSE, "Analyze mode: [%d] %s\n",
- s->analyze_mode, ana_mode_str[s->analyze_mode] );
- if (s->disable_autoconvert)
+ if (s->disable_autoconvert) {
+ av_log(ctx, AV_LOG_VERBOSE, "Disabling automatic format conversion.\n");
avfilter_graph_set_auto_convert(ctx->graph, AVFILTER_AUTO_CONVERT_NONE);
- av_log(ctx, AV_LOG_VERBOSE, "Auto-convert: %s (requested: %s)\n",
- (ctx->graph->disable_auto_convert) ? "disabled" : "enabled",
- (s->disable_autoconvert) ? "disable" : "do not disable" );
-
+ }
return 0;
}
static int config_input(AVFilterLink *inlink) {
AVFilterContext *ctx = inlink->dst;
HDCDContext *s = ctx->priv;
- AVFilterLink *lk;
+ int c;
+
+ av_log(ctx, AV_LOG_VERBOSE, "Auto-convert: %s\n",
+ (ctx->graph->disable_auto_convert) ? "disabled" : "enabled");
+
+ if ((inlink->format == AV_SAMPLE_FMT_S16 ||
+ inlink->format == AV_SAMPLE_FMT_S16P) &&
+ s->bits_per_sample != 16) {
+ av_log(ctx, AV_LOG_WARNING, "bits_per_sample %d does not fit into sample format %s, falling back to 16\n",
+ s->bits_per_sample, av_get_sample_fmt_name(inlink->format) );
+ s->bits_per_sample = 16;
+ } else {
+ av_log(ctx, AV_LOG_VERBOSE, "Looking for %d-bit HDCD in sample format %s\n",
+ s->bits_per_sample, av_get_sample_fmt_name(inlink->format) );
+ }
+
+ if (s->bits_per_sample != 16)
+ av_log(ctx, AV_LOG_WARNING, "20 and 24-bit HDCD decoding is experimental\n");
+ if (inlink->sample_rate != 44100)
+ av_log(ctx, AV_LOG_WARNING, "HDCD decoding for sample rates other than 44100 is experimental\n");
+
+ hdcd_detect_reset(&s->detect);
+ for (c = 0; c < HDCD_MAX_CHANNELS; c++) {
+ hdcd_reset(&s->state[c], inlink->sample_rate, s->cdt_ms);
+ }
+ av_log(ctx, AV_LOG_VERBOSE, "CDT period: %dms (%u samples @44100Hz)\n",
+ s->cdt_ms, s->state[0].sustain_reset );
if (inlink->channels != 2 && s->process_stereo) {
- av_log(ctx, AV_LOG_WARNING, "process_stereo disabled (channels = %d)", inlink->channels);
+ av_log(ctx, AV_LOG_WARNING, "process_stereo disabled (channels = %d)\n", inlink->channels);
s->process_stereo = 0;
}
+ av_log(ctx, AV_LOG_VERBOSE, "Process mode: %s\n",
+ (s->process_stereo) ? "process stereo channels together" : "process each channel separately");
+
+ av_log(ctx, AV_LOG_VERBOSE, "Force PE: %s\n",
+ (s->force_pe) ? "on" : "off");
+ av_log(ctx, AV_LOG_VERBOSE, "Analyze mode: [%d] %s\n",
+ s->analyze_mode, ana_mode_str[s->analyze_mode] );
- lk = inlink;
- while(lk != NULL) {
- AVFilterContext *nextf = lk->src;
- if (lk->type == AVMEDIA_TYPE_AUDIO) {
- int sfok = (lk->format == AV_SAMPLE_FMT_S16 ||
- lk->format == AV_SAMPLE_FMT_S16P);
- if ( !sfok || lk->sample_rate != 44100) {
- av_log(ctx, AV_LOG_WARNING, "An input format is %s@%dHz at %s. It will truncated/resampled to s16@44100Hz.\n",
- av_get_sample_fmt_name(lk->format), lk->sample_rate,
- (nextf->name) ? nextf->name : "<unknown>"
- );
- s->bad_config = 1;
- break;
- }
- }
- lk = (nextf->inputs) ? nextf->inputs[0] : NULL;
- }
- /* more warning will appear after config_output() */
return 0;
}
{ NULL }
};
-static int config_output(AVFilterLink *outlink) {
- static const char hdcd_baduse[] =
- "The HDCD filter is unlikely to produce a desirable result in this context.";
- AVFilterContext *ctx = outlink->src;
- HDCDContext *s = ctx->priv;
- AVFilterLink *lk = outlink;
- while(lk != NULL) {
- AVFilterContext *nextf = lk->dst;
- if (lk->type == AVMEDIA_TYPE_AUDIO) {
- if (lk->format == AV_SAMPLE_FMT_S16 || lk->format == AV_SAMPLE_FMT_U8) {
- av_log(ctx, AV_LOG_WARNING, "s24 output is being truncated to %s at %s.\n",
- av_get_sample_fmt_name(lk->format),
- (nextf->name) ? nextf->name : "<unknown>"
- );
- s->bad_config = 1;
- break;
- }
- }
- lk = (nextf->outputs) ? nextf->outputs[0] : NULL;
- }
- if (s->bad_config)
- av_log(ctx, AV_LOG_WARNING, "%s\n", hdcd_baduse);
- return 0;
-}
-
static const AVFilterPad avfilter_af_hdcd_outputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_AUDIO,
- .config_props = config_output,
},
{ NULL }
};
projects / ffmpeg / blobdiff