| /* |
| * This file is part of FFmpeg. |
| * |
| * 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. |
| * |
| * 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 FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include "libavutil/attributes.h" |
| #include "libavutil/avassert.h" |
| |
| #include "bytestream.h" |
| #include "cbs.h" |
| #include "cbs_internal.h" |
| #include "cbs_h264.h" |
| #include "cbs_h265.h" |
| #include "h264.h" |
| #include "h264_sei.h" |
| #include "h2645_parse.h" |
| #include "hevc.h" |
| #include "hevc_sei.h" |
| |
| |
| static int cbs_read_ue_golomb(CodedBitstreamContext *ctx, GetBitContext *gbc, |
| const char *name, const int *subscripts, |
| uint32_t *write_to, |
| uint32_t range_min, uint32_t range_max) |
| { |
| uint32_t value; |
| int position, i, j; |
| unsigned int k; |
| char bits[65]; |
| |
| position = get_bits_count(gbc); |
| |
| for (i = 0; i < 32; i++) { |
| if (get_bits_left(gbc) < i + 1) { |
| av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid ue-golomb code at " |
| "%s: bitstream ended.\n", name); |
| return AVERROR_INVALIDDATA; |
| } |
| k = get_bits1(gbc); |
| bits[i] = k ? '1' : '0'; |
| if (k) |
| break; |
| } |
| if (i >= 32) { |
| av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid ue-golomb code at " |
| "%s: more than 31 zeroes.\n", name); |
| return AVERROR_INVALIDDATA; |
| } |
| value = 1; |
| for (j = 0; j < i; j++) { |
| k = get_bits1(gbc); |
| bits[i + j + 1] = k ? '1' : '0'; |
| value = value << 1 | k; |
| } |
| bits[i + j + 1] = 0; |
| --value; |
| |
| if (ctx->trace_enable) |
| ff_cbs_trace_syntax_element(ctx, position, name, subscripts, |
| bits, value); |
| |
| if (value < range_min || value > range_max) { |
| av_log(ctx->log_ctx, AV_LOG_ERROR, "%s out of range: " |
| "%"PRIu32", but must be in [%"PRIu32",%"PRIu32"].\n", |
| name, value, range_min, range_max); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| *write_to = value; |
| return 0; |
| } |
| |
| static int cbs_read_se_golomb(CodedBitstreamContext *ctx, GetBitContext *gbc, |
| const char *name, const int *subscripts, |
| int32_t *write_to, |
| int32_t range_min, int32_t range_max) |
| { |
| int32_t value; |
| int position, i, j; |
| unsigned int k; |
| uint32_t v; |
| char bits[65]; |
| |
| position = get_bits_count(gbc); |
| |
| for (i = 0; i < 32; i++) { |
| if (get_bits_left(gbc) < i + 1) { |
| av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid se-golomb code at " |
| "%s: bitstream ended.\n", name); |
| return AVERROR_INVALIDDATA; |
| } |
| k = get_bits1(gbc); |
| bits[i] = k ? '1' : '0'; |
| if (k) |
| break; |
| } |
| if (i >= 32) { |
| av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid se-golomb code at " |
| "%s: more than 31 zeroes.\n", name); |
| return AVERROR_INVALIDDATA; |
| } |
| v = 1; |
| for (j = 0; j < i; j++) { |
| k = get_bits1(gbc); |
| bits[i + j + 1] = k ? '1' : '0'; |
| v = v << 1 | k; |
| } |
| bits[i + j + 1] = 0; |
| if (v & 1) |
| value = -(int32_t)(v / 2); |
| else |
| value = v / 2; |
| |
| if (ctx->trace_enable) |
| ff_cbs_trace_syntax_element(ctx, position, name, subscripts, |
| bits, value); |
| |
| if (value < range_min || value > range_max) { |
| av_log(ctx->log_ctx, AV_LOG_ERROR, "%s out of range: " |
| "%"PRId32", but must be in [%"PRId32",%"PRId32"].\n", |
| name, value, range_min, range_max); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| *write_to = value; |
| return 0; |
| } |
| |
| static int cbs_write_ue_golomb(CodedBitstreamContext *ctx, PutBitContext *pbc, |
| const char *name, const int *subscripts, |
| uint32_t value, |
| uint32_t range_min, uint32_t range_max) |
| { |
| int len; |
| |
| if (value < range_min || value > range_max) { |
| av_log(ctx->log_ctx, AV_LOG_ERROR, "%s out of range: " |
| "%"PRIu32", but must be in [%"PRIu32",%"PRIu32"].\n", |
| name, value, range_min, range_max); |
| return AVERROR_INVALIDDATA; |
| } |
| av_assert0(value != UINT32_MAX); |
| |
| len = av_log2(value + 1); |
| if (put_bits_left(pbc) < 2 * len + 1) |
| return AVERROR(ENOSPC); |
| |
| if (ctx->trace_enable) { |
| char bits[65]; |
| int i; |
| |
| for (i = 0; i < len; i++) |
| bits[i] = '0'; |
| bits[len] = '1'; |
| for (i = 0; i < len; i++) |
| bits[len + i + 1] = (value + 1) >> (len - i - 1) & 1 ? '1' : '0'; |
| bits[len + len + 1] = 0; |
| |
| ff_cbs_trace_syntax_element(ctx, put_bits_count(pbc), |
| name, subscripts, bits, value); |
| } |
| |
| put_bits(pbc, len, 0); |
| if (len + 1 < 32) |
| put_bits(pbc, len + 1, value + 1); |
| else |
| put_bits32(pbc, value + 1); |
| |
| return 0; |
| } |
| |
| static int cbs_write_se_golomb(CodedBitstreamContext *ctx, PutBitContext *pbc, |
| const char *name, const int *subscripts, |
| int32_t value, |
| int32_t range_min, int32_t range_max) |
| { |
| int len; |
| uint32_t uvalue; |
| |
| if (value < range_min || value > range_max) { |
| av_log(ctx->log_ctx, AV_LOG_ERROR, "%s out of range: " |
| "%"PRId32", but must be in [%"PRId32",%"PRId32"].\n", |
| name, value, range_min, range_max); |
| return AVERROR_INVALIDDATA; |
| } |
| av_assert0(value != INT32_MIN); |
| |
| if (value == 0) |
| uvalue = 0; |
| else if (value > 0) |
| uvalue = 2 * (uint32_t)value - 1; |
| else |
| uvalue = 2 * (uint32_t)-value; |
| |
| len = av_log2(uvalue + 1); |
| if (put_bits_left(pbc) < 2 * len + 1) |
| return AVERROR(ENOSPC); |
| |
| if (ctx->trace_enable) { |
| char bits[65]; |
| int i; |
| |
| for (i = 0; i < len; i++) |
| bits[i] = '0'; |
| bits[len] = '1'; |
| for (i = 0; i < len; i++) |
| bits[len + i + 1] = (uvalue + 1) >> (len - i - 1) & 1 ? '1' : '0'; |
| bits[len + len + 1] = 0; |
| |
| ff_cbs_trace_syntax_element(ctx, put_bits_count(pbc), |
| name, subscripts, bits, value); |
| } |
| |
| put_bits(pbc, len, 0); |
| if (len + 1 < 32) |
| put_bits(pbc, len + 1, uvalue + 1); |
| else |
| put_bits32(pbc, uvalue + 1); |
| |
| return 0; |
| } |
| |
| // payload_extension_present() - true if we are before the last 1-bit |
| // in the payload structure, which must be in the last byte. |
| static int cbs_h265_payload_extension_present(GetBitContext *gbc, uint32_t payload_size, |
| int cur_pos) |
| { |
| int bits_left = payload_size * 8 - cur_pos; |
| return (bits_left > 0 && |
| (bits_left > 7 || show_bits(gbc, bits_left) & MAX_UINT_BITS(bits_left - 1))); |
| } |
| |
| #define HEADER(name) do { \ |
| ff_cbs_trace_header(ctx, name); \ |
| } while (0) |
| |
| #define CHECK(call) do { \ |
| err = (call); \ |
| if (err < 0) \ |
| return err; \ |
| } while (0) |
| |
| #define FUNC_NAME2(rw, codec, name) cbs_ ## codec ## _ ## rw ## _ ## name |
| #define FUNC_NAME1(rw, codec, name) FUNC_NAME2(rw, codec, name) |
| #define FUNC_H264(name) FUNC_NAME1(READWRITE, h264, name) |
| #define FUNC_H265(name) FUNC_NAME1(READWRITE, h265, name) |
| #define FUNC_SEI(name) FUNC_NAME1(READWRITE, sei, name) |
| |
| #define SUBSCRIPTS(subs, ...) (subs > 0 ? ((int[subs + 1]){ subs, __VA_ARGS__ }) : NULL) |
| |
| #define u(width, name, range_min, range_max) \ |
| xu(width, name, current->name, range_min, range_max, 0, ) |
| #define ub(width, name) \ |
| xu(width, name, current->name, 0, MAX_UINT_BITS(width), 0, ) |
| #define flag(name) ub(1, name) |
| #define ue(name, range_min, range_max) \ |
| xue(name, current->name, range_min, range_max, 0, ) |
| #define i(width, name, range_min, range_max) \ |
| xi(width, name, current->name, range_min, range_max, 0, ) |
| #define ib(width, name) \ |
| xi(width, name, current->name, MIN_INT_BITS(width), MAX_INT_BITS(width), 0, ) |
| #define se(name, range_min, range_max) \ |
| xse(name, current->name, range_min, range_max, 0, ) |
| |
| #define us(width, name, range_min, range_max, subs, ...) \ |
| xu(width, name, current->name, range_min, range_max, subs, __VA_ARGS__) |
| #define ubs(width, name, subs, ...) \ |
| xu(width, name, current->name, 0, MAX_UINT_BITS(width), subs, __VA_ARGS__) |
| #define flags(name, subs, ...) \ |
| xu(1, name, current->name, 0, 1, subs, __VA_ARGS__) |
| #define ues(name, range_min, range_max, subs, ...) \ |
| xue(name, current->name, range_min, range_max, subs, __VA_ARGS__) |
| #define is(width, name, range_min, range_max, subs, ...) \ |
| xi(width, name, current->name, range_min, range_max, subs, __VA_ARGS__) |
| #define ibs(width, name, subs, ...) \ |
| xi(width, name, current->name, MIN_INT_BITS(width), MAX_INT_BITS(width), subs, __VA_ARGS__) |
| #define ses(name, range_min, range_max, subs, ...) \ |
| xse(name, current->name, range_min, range_max, subs, __VA_ARGS__) |
| |
| #define fixed(width, name, value) do { \ |
| av_unused uint32_t fixed_value = value; \ |
| xu(width, name, fixed_value, value, value, 0, ); \ |
| } while (0) |
| |
| |
| #define READ |
| #define READWRITE read |
| #define RWContext GetBitContext |
| |
| #define xu(width, name, var, range_min, range_max, subs, ...) do { \ |
| uint32_t value; \ |
| CHECK(ff_cbs_read_unsigned(ctx, rw, width, #name, \ |
| SUBSCRIPTS(subs, __VA_ARGS__), \ |
| &value, range_min, range_max)); \ |
| var = value; \ |
| } while (0) |
| #define xue(name, var, range_min, range_max, subs, ...) do { \ |
| uint32_t value; \ |
| CHECK(cbs_read_ue_golomb(ctx, rw, #name, \ |
| SUBSCRIPTS(subs, __VA_ARGS__), \ |
| &value, range_min, range_max)); \ |
| var = value; \ |
| } while (0) |
| #define xi(width, name, var, range_min, range_max, subs, ...) do { \ |
| int32_t value; \ |
| CHECK(ff_cbs_read_signed(ctx, rw, width, #name, \ |
| SUBSCRIPTS(subs, __VA_ARGS__), \ |
| &value, range_min, range_max)); \ |
| var = value; \ |
| } while (0) |
| #define xse(name, var, range_min, range_max, subs, ...) do { \ |
| int32_t value; \ |
| CHECK(cbs_read_se_golomb(ctx, rw, #name, \ |
| SUBSCRIPTS(subs, __VA_ARGS__), \ |
| &value, range_min, range_max)); \ |
| var = value; \ |
| } while (0) |
| |
| |
| #define infer(name, value) do { \ |
| current->name = value; \ |
| } while (0) |
| |
| static int cbs_h2645_read_more_rbsp_data(GetBitContext *gbc) |
| { |
| int bits_left = get_bits_left(gbc); |
| if (bits_left > 8) |
| return 1; |
| if (bits_left == 0) |
| return 0; |
| if (show_bits(gbc, bits_left) & MAX_UINT_BITS(bits_left - 1)) |
| return 1; |
| return 0; |
| } |
| |
| #define more_rbsp_data(var) ((var) = cbs_h2645_read_more_rbsp_data(rw)) |
| |
| #define bit_position(rw) (get_bits_count(rw)) |
| #define byte_alignment(rw) (get_bits_count(rw) % 8) |
| |
| #define allocate(name, size) do { \ |
| name ## _ref = av_buffer_allocz(size + \ |
| AV_INPUT_BUFFER_PADDING_SIZE); \ |
| if (!name ## _ref) \ |
| return AVERROR(ENOMEM); \ |
| name = name ## _ref->data; \ |
| } while (0) |
| |
| #define FUNC(name) FUNC_SEI(name) |
| #include "cbs_sei_syntax_template.c" |
| #undef FUNC |
| |
| #define FUNC(name) FUNC_H264(name) |
| #include "cbs_h264_syntax_template.c" |
| #undef FUNC |
| |
| #define FUNC(name) FUNC_H265(name) |
| #include "cbs_h265_syntax_template.c" |
| #undef FUNC |
| |
| #undef READ |
| #undef READWRITE |
| #undef RWContext |
| #undef xu |
| #undef xi |
| #undef xue |
| #undef xse |
| #undef infer |
| #undef more_rbsp_data |
| #undef bit_position |
| #undef byte_alignment |
| #undef allocate |
| |
| |
| #define WRITE |
| #define READWRITE write |
| #define RWContext PutBitContext |
| |
| #define xu(width, name, var, range_min, range_max, subs, ...) do { \ |
| uint32_t value = var; \ |
| CHECK(ff_cbs_write_unsigned(ctx, rw, width, #name, \ |
| SUBSCRIPTS(subs, __VA_ARGS__), \ |
| value, range_min, range_max)); \ |
| } while (0) |
| #define xue(name, var, range_min, range_max, subs, ...) do { \ |
| uint32_t value = var; \ |
| CHECK(cbs_write_ue_golomb(ctx, rw, #name, \ |
| SUBSCRIPTS(subs, __VA_ARGS__), \ |
| value, range_min, range_max)); \ |
| } while (0) |
| #define xi(width, name, var, range_min, range_max, subs, ...) do { \ |
| int32_t value = var; \ |
| CHECK(ff_cbs_write_signed(ctx, rw, width, #name, \ |
| SUBSCRIPTS(subs, __VA_ARGS__), \ |
| value, range_min, range_max)); \ |
| } while (0) |
| #define xse(name, var, range_min, range_max, subs, ...) do { \ |
| int32_t value = var; \ |
| CHECK(cbs_write_se_golomb(ctx, rw, #name, \ |
| SUBSCRIPTS(subs, __VA_ARGS__), \ |
| value, range_min, range_max)); \ |
| } while (0) |
| |
| #define infer(name, value) do { \ |
| if (current->name != (value)) { \ |
| av_log(ctx->log_ctx, AV_LOG_ERROR, \ |
| "%s does not match inferred value: " \ |
| "%"PRId64", but should be %"PRId64".\n", \ |
| #name, (int64_t)current->name, (int64_t)(value)); \ |
| return AVERROR_INVALIDDATA; \ |
| } \ |
| } while (0) |
| |
| #define more_rbsp_data(var) (var) |
| |
| #define bit_position(rw) (put_bits_count(rw)) |
| #define byte_alignment(rw) (put_bits_count(rw) % 8) |
| |
| #define allocate(name, size) do { \ |
| if (!name) { \ |
| av_log(ctx->log_ctx, AV_LOG_ERROR, "%s must be set " \ |
| "for writing.\n", #name); \ |
| return AVERROR_INVALIDDATA; \ |
| } \ |
| } while (0) |
| |
| #define FUNC(name) FUNC_SEI(name) |
| #include "cbs_sei_syntax_template.c" |
| #undef FUNC |
| |
| #define FUNC(name) FUNC_H264(name) |
| #include "cbs_h264_syntax_template.c" |
| #undef FUNC |
| |
| #define FUNC(name) FUNC_H265(name) |
| #include "cbs_h265_syntax_template.c" |
| #undef FUNC |
| |
| #undef WRITE |
| #undef READWRITE |
| #undef RWContext |
| #undef xu |
| #undef xi |
| #undef xue |
| #undef xse |
| #undef u |
| #undef i |
| #undef flag |
| #undef ue |
| #undef se |
| #undef infer |
| #undef more_rbsp_data |
| #undef bit_position |
| #undef byte_alignment |
| #undef allocate |
| |
| |
| static int cbs_h2645_fragment_add_nals(CodedBitstreamContext *ctx, |
| CodedBitstreamFragment *frag, |
| const H2645Packet *packet) |
| { |
| int err, i; |
| |
| for (i = 0; i < packet->nb_nals; i++) { |
| const H2645NAL *nal = &packet->nals[i]; |
| AVBufferRef *ref; |
| size_t size = nal->size; |
| |
| if (nal->nuh_layer_id > 0) |
| continue; |
| |
| // Remove trailing zeroes. |
| while (size > 0 && nal->data[size - 1] == 0) |
| --size; |
| if (size == 0) { |
| av_log(ctx->log_ctx, AV_LOG_VERBOSE, "Discarding empty 0 NAL unit\n"); |
| continue; |
| } |
| |
| ref = (nal->data == nal->raw_data) ? frag->data_ref |
| : packet->rbsp.rbsp_buffer_ref; |
| |
| err = ff_cbs_insert_unit_data(frag, -1, nal->type, |
| (uint8_t*)nal->data, size, ref); |
| if (err < 0) |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| static int cbs_h2645_split_fragment(CodedBitstreamContext *ctx, |
| CodedBitstreamFragment *frag, |
| int header) |
| { |
| enum AVCodecID codec_id = ctx->codec->codec_id; |
| CodedBitstreamH2645Context *priv = ctx->priv_data; |
| GetByteContext gbc; |
| int err; |
| |
| av_assert0(frag->data && frag->nb_units == 0); |
| if (frag->data_size == 0) |
| return 0; |
| |
| if (header && frag->data[0] && codec_id == AV_CODEC_ID_H264) { |
| // AVCC header. |
| size_t size, start, end; |
| int i, count, version; |
| |
| priv->mp4 = 1; |
| |
| bytestream2_init(&gbc, frag->data, frag->data_size); |
| |
| if (bytestream2_get_bytes_left(&gbc) < 6) |
| return AVERROR_INVALIDDATA; |
| |
| version = bytestream2_get_byte(&gbc); |
| if (version != 1) { |
| av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid AVCC header: " |
| "first byte %u.\n", version); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| bytestream2_skip(&gbc, 3); |
| priv->nal_length_size = (bytestream2_get_byte(&gbc) & 3) + 1; |
| |
| // SPS array. |
| count = bytestream2_get_byte(&gbc) & 0x1f; |
| start = bytestream2_tell(&gbc); |
| for (i = 0; i < count; i++) { |
| if (bytestream2_get_bytes_left(&gbc) < 2 * (count - i)) |
| return AVERROR_INVALIDDATA; |
| size = bytestream2_get_be16(&gbc); |
| if (bytestream2_get_bytes_left(&gbc) < size) |
| return AVERROR_INVALIDDATA; |
| bytestream2_skip(&gbc, size); |
| } |
| end = bytestream2_tell(&gbc); |
| |
| err = ff_h2645_packet_split(&priv->read_packet, |
| frag->data + start, end - start, |
| ctx->log_ctx, 1, 2, AV_CODEC_ID_H264, 1, 1); |
| if (err < 0) { |
| av_log(ctx->log_ctx, AV_LOG_ERROR, "Failed to split AVCC SPS array.\n"); |
| return err; |
| } |
| err = cbs_h2645_fragment_add_nals(ctx, frag, &priv->read_packet); |
| if (err < 0) |
| return err; |
| |
| // PPS array. |
| count = bytestream2_get_byte(&gbc); |
| start = bytestream2_tell(&gbc); |
| for (i = 0; i < count; i++) { |
| if (bytestream2_get_bytes_left(&gbc) < 2 * (count - i)) |
| return AVERROR_INVALIDDATA; |
| size = bytestream2_get_be16(&gbc); |
| if (bytestream2_get_bytes_left(&gbc) < size) |
| return AVERROR_INVALIDDATA; |
| bytestream2_skip(&gbc, size); |
| } |
| end = bytestream2_tell(&gbc); |
| |
| err = ff_h2645_packet_split(&priv->read_packet, |
| frag->data + start, end - start, |
| ctx->log_ctx, 1, 2, AV_CODEC_ID_H264, 1, 1); |
| if (err < 0) { |
| av_log(ctx->log_ctx, AV_LOG_ERROR, "Failed to split AVCC PPS array.\n"); |
| return err; |
| } |
| err = cbs_h2645_fragment_add_nals(ctx, frag, &priv->read_packet); |
| if (err < 0) |
| return err; |
| |
| if (bytestream2_get_bytes_left(&gbc) > 0) { |
| av_log(ctx->log_ctx, AV_LOG_WARNING, "%u bytes left at end of AVCC " |
| "header.\n", bytestream2_get_bytes_left(&gbc)); |
| } |
| |
| } else if (header && frag->data[0] && codec_id == AV_CODEC_ID_HEVC) { |
| // HVCC header. |
| size_t size, start, end; |
| int i, j, nb_arrays, nal_unit_type, nb_nals, version; |
| |
| priv->mp4 = 1; |
| |
| bytestream2_init(&gbc, frag->data, frag->data_size); |
| |
| if (bytestream2_get_bytes_left(&gbc) < 23) |
| return AVERROR_INVALIDDATA; |
| |
| version = bytestream2_get_byte(&gbc); |
| if (version != 1) { |
| av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid HVCC header: " |
| "first byte %u.\n", version); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| bytestream2_skip(&gbc, 20); |
| priv->nal_length_size = (bytestream2_get_byte(&gbc) & 3) + 1; |
| |
| nb_arrays = bytestream2_get_byte(&gbc); |
| for (i = 0; i < nb_arrays; i++) { |
| nal_unit_type = bytestream2_get_byte(&gbc) & 0x3f; |
| nb_nals = bytestream2_get_be16(&gbc); |
| |
| start = bytestream2_tell(&gbc); |
| for (j = 0; j < nb_nals; j++) { |
| if (bytestream2_get_bytes_left(&gbc) < 2) |
| return AVERROR_INVALIDDATA; |
| size = bytestream2_get_be16(&gbc); |
| if (bytestream2_get_bytes_left(&gbc) < size) |
| return AVERROR_INVALIDDATA; |
| bytestream2_skip(&gbc, size); |
| } |
| end = bytestream2_tell(&gbc); |
| |
| err = ff_h2645_packet_split(&priv->read_packet, |
| frag->data + start, end - start, |
| ctx->log_ctx, 1, 2, AV_CODEC_ID_HEVC, 1, 1); |
| if (err < 0) { |
| av_log(ctx->log_ctx, AV_LOG_ERROR, "Failed to split " |
| "HVCC array %d (%d NAL units of type %d).\n", |
| i, nb_nals, nal_unit_type); |
| return err; |
| } |
| err = cbs_h2645_fragment_add_nals(ctx, frag, &priv->read_packet); |
| if (err < 0) |
| return err; |
| } |
| |
| } else { |
| // Annex B, or later MP4 with already-known parameters. |
| |
| err = ff_h2645_packet_split(&priv->read_packet, |
| frag->data, frag->data_size, |
| ctx->log_ctx, |
| priv->mp4, priv->nal_length_size, |
| codec_id, 1, 1); |
| if (err < 0) |
| return err; |
| |
| err = cbs_h2645_fragment_add_nals(ctx, frag, &priv->read_packet); |
| if (err < 0) |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| #define cbs_h2645_replace_ps(h26n, ps_name, ps_var, id_element) \ |
| static int cbs_h26 ## h26n ## _replace_ ## ps_var(CodedBitstreamContext *ctx, \ |
| CodedBitstreamUnit *unit) \ |
| { \ |
| CodedBitstreamH26 ## h26n ## Context *priv = ctx->priv_data; \ |
| H26 ## h26n ## Raw ## ps_name *ps_var = unit->content; \ |
| unsigned int id = ps_var->id_element; \ |
| int err; \ |
| if (id >= FF_ARRAY_ELEMS(priv->ps_var)) { \ |
| av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid " #ps_name \ |
| " id : %d.\n", id); \ |
| return AVERROR_INVALIDDATA; \ |
| } \ |
| err = ff_cbs_make_unit_refcounted(ctx, unit); \ |
| if (err < 0) \ |
| return err; \ |
| if (priv->ps_var[id] == priv->active_ ## ps_var) \ |
| priv->active_ ## ps_var = NULL ; \ |
| av_buffer_unref(&priv->ps_var ## _ref[id]); \ |
| av_assert0(unit->content_ref); \ |
| priv->ps_var ## _ref[id] = av_buffer_ref(unit->content_ref); \ |
| if (!priv->ps_var ## _ref[id]) \ |
| return AVERROR(ENOMEM); \ |
| priv->ps_var[id] = (H26 ## h26n ## Raw ## ps_name *)priv->ps_var ## _ref[id]->data; \ |
| return 0; \ |
| } |
| |
| cbs_h2645_replace_ps(4, SPS, sps, seq_parameter_set_id) |
| cbs_h2645_replace_ps(4, PPS, pps, pic_parameter_set_id) |
| cbs_h2645_replace_ps(5, VPS, vps, vps_video_parameter_set_id) |
| cbs_h2645_replace_ps(5, SPS, sps, sps_seq_parameter_set_id) |
| cbs_h2645_replace_ps(5, PPS, pps, pps_pic_parameter_set_id) |
| |
| static int cbs_h264_read_nal_unit(CodedBitstreamContext *ctx, |
| CodedBitstreamUnit *unit) |
| { |
| GetBitContext gbc; |
| int err; |
| |
| err = init_get_bits(&gbc, unit->data, 8 * unit->data_size); |
| if (err < 0) |
| return err; |
| |
| err = ff_cbs_alloc_unit_content2(ctx, unit); |
| if (err < 0) |
| return err; |
| |
| switch (unit->type) { |
| case H264_NAL_SPS: |
| { |
| H264RawSPS *sps = unit->content; |
| |
| err = cbs_h264_read_sps(ctx, &gbc, sps); |
| if (err < 0) |
| return err; |
| |
| err = cbs_h264_replace_sps(ctx, unit); |
| if (err < 0) |
| return err; |
| } |
| break; |
| |
| case H264_NAL_SPS_EXT: |
| { |
| err = cbs_h264_read_sps_extension(ctx, &gbc, unit->content); |
| if (err < 0) |
| return err; |
| } |
| break; |
| |
| case H264_NAL_PPS: |
| { |
| H264RawPPS *pps = unit->content; |
| |
| err = cbs_h264_read_pps(ctx, &gbc, pps); |
| if (err < 0) |
| return err; |
| |
| err = cbs_h264_replace_pps(ctx, unit); |
| if (err < 0) |
| return err; |
| } |
| break; |
| |
| case H264_NAL_SLICE: |
| case H264_NAL_IDR_SLICE: |
| case H264_NAL_AUXILIARY_SLICE: |
| { |
| H264RawSlice *slice = unit->content; |
| int pos, len; |
| |
| err = cbs_h264_read_slice_header(ctx, &gbc, &slice->header); |
| if (err < 0) |
| return err; |
| |
| if (!cbs_h2645_read_more_rbsp_data(&gbc)) |
| return AVERROR_INVALIDDATA; |
| |
| pos = get_bits_count(&gbc); |
| len = unit->data_size; |
| |
| slice->data_size = len - pos / 8; |
| slice->data_ref = av_buffer_ref(unit->data_ref); |
| if (!slice->data_ref) |
| return AVERROR(ENOMEM); |
| slice->data = unit->data + pos / 8; |
| slice->data_bit_start = pos % 8; |
| } |
| break; |
| |
| case H264_NAL_AUD: |
| { |
| err = cbs_h264_read_aud(ctx, &gbc, unit->content); |
| if (err < 0) |
| return err; |
| } |
| break; |
| |
| case H264_NAL_SEI: |
| { |
| err = cbs_h264_read_sei(ctx, &gbc, unit->content); |
| if (err < 0) |
| return err; |
| } |
| break; |
| |
| case H264_NAL_FILLER_DATA: |
| { |
| err = cbs_h264_read_filler(ctx, &gbc, unit->content); |
| if (err < 0) |
| return err; |
| } |
| break; |
| |
| case H264_NAL_END_SEQUENCE: |
| case H264_NAL_END_STREAM: |
| { |
| err = (unit->type == H264_NAL_END_SEQUENCE ? |
| cbs_h264_read_end_of_sequence : |
| cbs_h264_read_end_of_stream)(ctx, &gbc, unit->content); |
| if (err < 0) |
| return err; |
| } |
| break; |
| |
| default: |
| return AVERROR(ENOSYS); |
| } |
| |
| return 0; |
| } |
| |
| static int cbs_h265_read_nal_unit(CodedBitstreamContext *ctx, |
| CodedBitstreamUnit *unit) |
| { |
| GetBitContext gbc; |
| int err; |
| |
| err = init_get_bits(&gbc, unit->data, 8 * unit->data_size); |
| if (err < 0) |
| return err; |
| |
| err = ff_cbs_alloc_unit_content2(ctx, unit); |
| if (err < 0) |
| return err; |
| |
| switch (unit->type) { |
| case HEVC_NAL_VPS: |
| { |
| H265RawVPS *vps = unit->content; |
| |
| err = cbs_h265_read_vps(ctx, &gbc, vps); |
| if (err < 0) |
| return err; |
| |
| err = cbs_h265_replace_vps(ctx, unit); |
| if (err < 0) |
| return err; |
| } |
| break; |
| case HEVC_NAL_SPS: |
| { |
| H265RawSPS *sps = unit->content; |
| |
| err = cbs_h265_read_sps(ctx, &gbc, sps); |
| if (err < 0) |
| return err; |
| |
| err = cbs_h265_replace_sps(ctx, unit); |
| if (err < 0) |
| return err; |
| } |
| break; |
| |
| case HEVC_NAL_PPS: |
| { |
| H265RawPPS *pps = unit->content; |
| |
| err = cbs_h265_read_pps(ctx, &gbc, pps); |
| if (err < 0) |
| return err; |
| |
| err = cbs_h265_replace_pps(ctx, unit); |
| if (err < 0) |
| return err; |
| } |
| break; |
| |
| case HEVC_NAL_TRAIL_N: |
| case HEVC_NAL_TRAIL_R: |
| case HEVC_NAL_TSA_N: |
| case HEVC_NAL_TSA_R: |
| case HEVC_NAL_STSA_N: |
| case HEVC_NAL_STSA_R: |
| case HEVC_NAL_RADL_N: |
| case HEVC_NAL_RADL_R: |
| case HEVC_NAL_RASL_N: |
| case HEVC_NAL_RASL_R: |
| case HEVC_NAL_BLA_W_LP: |
| case HEVC_NAL_BLA_W_RADL: |
| case HEVC_NAL_BLA_N_LP: |
| case HEVC_NAL_IDR_W_RADL: |
| case HEVC_NAL_IDR_N_LP: |
| case HEVC_NAL_CRA_NUT: |
| { |
| H265RawSlice *slice = unit->content; |
| int pos, len; |
| |
| err = cbs_h265_read_slice_segment_header(ctx, &gbc, &slice->header); |
| if (err < 0) |
| return err; |
| |
| if (!cbs_h2645_read_more_rbsp_data(&gbc)) |
| return AVERROR_INVALIDDATA; |
| |
| pos = get_bits_count(&gbc); |
| len = unit->data_size; |
| |
| slice->data_size = len - pos / 8; |
| slice->data_ref = av_buffer_ref(unit->data_ref); |
| if (!slice->data_ref) |
| return AVERROR(ENOMEM); |
| slice->data = unit->data + pos / 8; |
| slice->data_bit_start = pos % 8; |
| } |
| break; |
| |
| case HEVC_NAL_AUD: |
| { |
| err = cbs_h265_read_aud(ctx, &gbc, unit->content); |
| if (err < 0) |
| return err; |
| } |
| break; |
| |
| case HEVC_NAL_SEI_PREFIX: |
| case HEVC_NAL_SEI_SUFFIX: |
| { |
| err = cbs_h265_read_sei(ctx, &gbc, unit->content, |
| unit->type == HEVC_NAL_SEI_PREFIX); |
| |
| if (err < 0) |
| return err; |
| } |
| break; |
| |
| default: |
| return AVERROR(ENOSYS); |
| } |
| |
| return 0; |
| } |
| |
| static int cbs_h2645_write_slice_data(CodedBitstreamContext *ctx, |
| PutBitContext *pbc, const uint8_t *data, |
| size_t data_size, int data_bit_start) |
| { |
| size_t rest = data_size - (data_bit_start + 7) / 8; |
| const uint8_t *pos = data + data_bit_start / 8; |
| |
| av_assert0(data_bit_start >= 0 && |
| data_size > data_bit_start / 8); |
| |
| if (data_size * 8 + 8 > put_bits_left(pbc)) |
| return AVERROR(ENOSPC); |
| |
| if (!rest) |
| goto rbsp_stop_one_bit; |
| |
| // First copy the remaining bits of the first byte |
| // The above check ensures that we do not accidentally |
| // copy beyond the rbsp_stop_one_bit. |
| if (data_bit_start % 8) |
| put_bits(pbc, 8 - data_bit_start % 8, |
| *pos++ & MAX_UINT_BITS(8 - data_bit_start % 8)); |
| |
| if (put_bits_count(pbc) % 8 == 0) { |
| // If the writer is aligned at this point, |
| // memcpy can be used to improve performance. |
| // This happens normally for CABAC. |
| flush_put_bits(pbc); |
| memcpy(put_bits_ptr(pbc), pos, rest); |
| skip_put_bytes(pbc, rest); |
| } else { |
| // If not, we have to copy manually. |
| // rbsp_stop_one_bit forces us to special-case |
| // the last byte. |
| uint8_t temp; |
| int i; |
| |
| for (; rest > 4; rest -= 4, pos += 4) |
| put_bits32(pbc, AV_RB32(pos)); |
| |
| for (; rest > 1; rest--, pos++) |
| put_bits(pbc, 8, *pos); |
| |
| rbsp_stop_one_bit: |
| temp = rest ? *pos : *pos & MAX_UINT_BITS(8 - data_bit_start % 8); |
| |
| av_assert0(temp); |
| i = ff_ctz(*pos); |
| temp = temp >> i; |
| i = rest ? (8 - i) : (8 - i - data_bit_start % 8); |
| put_bits(pbc, i, temp); |
| if (put_bits_count(pbc) % 8) |
| put_bits(pbc, 8 - put_bits_count(pbc) % 8, 0); |
| } |
| |
| return 0; |
| } |
| |
| static int cbs_h264_write_nal_unit(CodedBitstreamContext *ctx, |
| CodedBitstreamUnit *unit, |
| PutBitContext *pbc) |
| { |
| int err; |
| |
| switch (unit->type) { |
| case H264_NAL_SPS: |
| { |
| H264RawSPS *sps = unit->content; |
| |
| err = cbs_h264_write_sps(ctx, pbc, sps); |
| if (err < 0) |
| return err; |
| |
| err = cbs_h264_replace_sps(ctx, unit); |
| if (err < 0) |
| return err; |
| } |
| break; |
| |
| case H264_NAL_SPS_EXT: |
| { |
| H264RawSPSExtension *sps_ext = unit->content; |
| |
| err = cbs_h264_write_sps_extension(ctx, pbc, sps_ext); |
| if (err < 0) |
| return err; |
| } |
| break; |
| |
| case H264_NAL_PPS: |
| { |
| H264RawPPS *pps = unit->content; |
| |
| err = cbs_h264_write_pps(ctx, pbc, pps); |
| if (err < 0) |
| return err; |
| |
| err = cbs_h264_replace_pps(ctx, unit); |
| if (err < 0) |
| return err; |
| } |
| break; |
| |
| case H264_NAL_SLICE: |
| case H264_NAL_IDR_SLICE: |
| case H264_NAL_AUXILIARY_SLICE: |
| { |
| H264RawSlice *slice = unit->content; |
| |
| err = cbs_h264_write_slice_header(ctx, pbc, &slice->header); |
| if (err < 0) |
| return err; |
| |
| if (slice->data) { |
| err = cbs_h2645_write_slice_data(ctx, pbc, slice->data, |
| slice->data_size, |
| slice->data_bit_start); |
| if (err < 0) |
| return err; |
| } else { |
| // No slice data - that was just the header. |
| // (Bitstream may be unaligned!) |
| } |
| } |
| break; |
| |
| case H264_NAL_AUD: |
| { |
| err = cbs_h264_write_aud(ctx, pbc, unit->content); |
| if (err < 0) |
| return err; |
| } |
| break; |
| |
| case H264_NAL_SEI: |
| { |
| err = cbs_h264_write_sei(ctx, pbc, unit->content); |
| if (err < 0) |
| return err; |
| } |
| break; |
| |
| case H264_NAL_FILLER_DATA: |
| { |
| err = cbs_h264_write_filler(ctx, pbc, unit->content); |
| if (err < 0) |
| return err; |
| } |
| break; |
| |
| case H264_NAL_END_SEQUENCE: |
| { |
| err = cbs_h264_write_end_of_sequence(ctx, pbc, unit->content); |
| if (err < 0) |
| return err; |
| } |
| break; |
| |
| case H264_NAL_END_STREAM: |
| { |
| err = cbs_h264_write_end_of_stream(ctx, pbc, unit->content); |
| if (err < 0) |
| return err; |
| } |
| break; |
| |
| default: |
| av_log(ctx->log_ctx, AV_LOG_ERROR, "Write unimplemented for " |
| "NAL unit type %"PRIu32".\n", unit->type); |
| return AVERROR_PATCHWELCOME; |
| } |
| |
| return 0; |
| } |
| |
| static int cbs_h265_write_nal_unit(CodedBitstreamContext *ctx, |
| CodedBitstreamUnit *unit, |
| PutBitContext *pbc) |
| { |
| int err; |
| |
| switch (unit->type) { |
| case HEVC_NAL_VPS: |
| { |
| H265RawVPS *vps = unit->content; |
| |
| err = cbs_h265_write_vps(ctx, pbc, vps); |
| if (err < 0) |
| return err; |
| |
| err = cbs_h265_replace_vps(ctx, unit); |
| if (err < 0) |
| return err; |
| } |
| break; |
| |
| case HEVC_NAL_SPS: |
| { |
| H265RawSPS *sps = unit->content; |
| |
| err = cbs_h265_write_sps(ctx, pbc, sps); |
| if (err < 0) |
| return err; |
| |
| err = cbs_h265_replace_sps(ctx, unit); |
| if (err < 0) |
| return err; |
| } |
| break; |
| |
| case HEVC_NAL_PPS: |
| { |
| H265RawPPS *pps = unit->content; |
| |
| err = cbs_h265_write_pps(ctx, pbc, pps); |
| if (err < 0) |
| return err; |
| |
| err = cbs_h265_replace_pps(ctx, unit); |
| if (err < 0) |
| return err; |
| } |
| break; |
| |
| case HEVC_NAL_TRAIL_N: |
| case HEVC_NAL_TRAIL_R: |
| case HEVC_NAL_TSA_N: |
| case HEVC_NAL_TSA_R: |
| case HEVC_NAL_STSA_N: |
| case HEVC_NAL_STSA_R: |
| case HEVC_NAL_RADL_N: |
| case HEVC_NAL_RADL_R: |
| case HEVC_NAL_RASL_N: |
| case HEVC_NAL_RASL_R: |
| case HEVC_NAL_BLA_W_LP: |
| case HEVC_NAL_BLA_W_RADL: |
| case HEVC_NAL_BLA_N_LP: |
| case HEVC_NAL_IDR_W_RADL: |
| case HEVC_NAL_IDR_N_LP: |
| case HEVC_NAL_CRA_NUT: |
| { |
| H265RawSlice *slice = unit->content; |
| |
| err = cbs_h265_write_slice_segment_header(ctx, pbc, &slice->header); |
| if (err < 0) |
| return err; |
| |
| if (slice->data) { |
| err = cbs_h2645_write_slice_data(ctx, pbc, slice->data, |
| slice->data_size, |
| slice->data_bit_start); |
| if (err < 0) |
| return err; |
| } else { |
| // No slice data - that was just the header. |
| } |
| } |
| break; |
| |
| case HEVC_NAL_AUD: |
| { |
| err = cbs_h265_write_aud(ctx, pbc, unit->content); |
| if (err < 0) |
| return err; |
| } |
| break; |
| |
| case HEVC_NAL_SEI_PREFIX: |
| case HEVC_NAL_SEI_SUFFIX: |
| { |
| err = cbs_h265_write_sei(ctx, pbc, unit->content, |
| unit->type == HEVC_NAL_SEI_PREFIX); |
| |
| if (err < 0) |
| return err; |
| } |
| break; |
| |
| default: |
| av_log(ctx->log_ctx, AV_LOG_ERROR, "Write unimplemented for " |
| "NAL unit type %"PRIu32".\n", unit->type); |
| return AVERROR_PATCHWELCOME; |
| } |
| |
| return 0; |
| } |
| |
| static int cbs_h2645_unit_requires_zero_byte(enum AVCodecID codec_id, |
| CodedBitstreamUnitType type, |
| int nal_unit_index) |
| { |
| // Section B.1.2 in H.264, section B.2.2 in H.265. |
| if (nal_unit_index == 0) { |
| // Assume that this is the first NAL unit in an access unit. |
| return 1; |
| } |
| if (codec_id == AV_CODEC_ID_H264) |
| return type == H264_NAL_SPS || type == H264_NAL_PPS; |
| if (codec_id == AV_CODEC_ID_HEVC) |
| return type == HEVC_NAL_VPS || type == HEVC_NAL_SPS || type == HEVC_NAL_PPS; |
| return 0; |
| } |
| |
| static int cbs_h2645_assemble_fragment(CodedBitstreamContext *ctx, |
| CodedBitstreamFragment *frag) |
| { |
| uint8_t *data; |
| size_t max_size, dp, sp; |
| int err, i, zero_run; |
| |
| for (i = 0; i < frag->nb_units; i++) { |
| // Data should already all have been written when we get here. |
| av_assert0(frag->units[i].data); |
| } |
| |
| max_size = 0; |
| for (i = 0; i < frag->nb_units; i++) { |
| // Start code + content with worst-case emulation prevention. |
| max_size += 4 + frag->units[i].data_size * 3 / 2; |
| } |
| |
| data = av_realloc(NULL, max_size + AV_INPUT_BUFFER_PADDING_SIZE); |
| if (!data) |
| return AVERROR(ENOMEM); |
| |
| dp = 0; |
| for (i = 0; i < frag->nb_units; i++) { |
| CodedBitstreamUnit *unit = &frag->units[i]; |
| |
| if (unit->data_bit_padding > 0) { |
| if (i < frag->nb_units - 1) |
| av_log(ctx->log_ctx, AV_LOG_WARNING, "Probably invalid " |
| "unaligned padding on non-final NAL unit.\n"); |
| else |
| frag->data_bit_padding = unit->data_bit_padding; |
| } |
| |
| if (cbs_h2645_unit_requires_zero_byte(ctx->codec->codec_id, unit->type, i)) { |
| // zero_byte |
| data[dp++] = 0; |
| } |
| // start_code_prefix_one_3bytes |
| data[dp++] = 0; |
| data[dp++] = 0; |
| data[dp++] = 1; |
| |
| zero_run = 0; |
| for (sp = 0; sp < unit->data_size; sp++) { |
| if (zero_run < 2) { |
| if (unit->data[sp] == 0) |
| ++zero_run; |
| else |
| zero_run = 0; |
| } else { |
| if ((unit->data[sp] & ~3) == 0) { |
| // emulation_prevention_three_byte |
| data[dp++] = 3; |
| } |
| zero_run = unit->data[sp] == 0; |
| } |
| data[dp++] = unit->data[sp]; |
| } |
| } |
| |
| av_assert0(dp <= max_size); |
| err = av_reallocp(&data, dp + AV_INPUT_BUFFER_PADDING_SIZE); |
| if (err) |
| return err; |
| memset(data + dp, 0, AV_INPUT_BUFFER_PADDING_SIZE); |
| |
| frag->data_ref = av_buffer_create(data, dp + AV_INPUT_BUFFER_PADDING_SIZE, |
| NULL, NULL, 0); |
| if (!frag->data_ref) { |
| av_freep(&data); |
| return AVERROR(ENOMEM); |
| } |
| |
| frag->data = data; |
| frag->data_size = dp; |
| |
| return 0; |
| } |
| |
| static void cbs_h264_flush(CodedBitstreamContext *ctx) |
| { |
| CodedBitstreamH264Context *h264 = ctx->priv_data; |
| |
| for (int i = 0; i < FF_ARRAY_ELEMS(h264->sps); i++) { |
| av_buffer_unref(&h264->sps_ref[i]); |
| h264->sps[i] = NULL; |
| } |
| for (int i = 0; i < FF_ARRAY_ELEMS(h264->pps); i++) { |
| av_buffer_unref(&h264->pps_ref[i]); |
| h264->pps[i] = NULL; |
| } |
| |
| h264->active_sps = NULL; |
| h264->active_pps = NULL; |
| h264->last_slice_nal_unit_type = 0; |
| } |
| |
| static void cbs_h264_close(CodedBitstreamContext *ctx) |
| { |
| CodedBitstreamH264Context *h264 = ctx->priv_data; |
| int i; |
| |
| ff_h2645_packet_uninit(&h264->common.read_packet); |
| |
| for (i = 0; i < FF_ARRAY_ELEMS(h264->sps); i++) |
| av_buffer_unref(&h264->sps_ref[i]); |
| for (i = 0; i < FF_ARRAY_ELEMS(h264->pps); i++) |
| av_buffer_unref(&h264->pps_ref[i]); |
| } |
| |
| static void cbs_h265_flush(CodedBitstreamContext *ctx) |
| { |
| CodedBitstreamH265Context *h265 = ctx->priv_data; |
| |
| for (int i = 0; i < FF_ARRAY_ELEMS(h265->vps); i++) { |
| av_buffer_unref(&h265->vps_ref[i]); |
| h265->vps[i] = NULL; |
| } |
| for (int i = 0; i < FF_ARRAY_ELEMS(h265->sps); i++) { |
| av_buffer_unref(&h265->sps_ref[i]); |
| h265->sps[i] = NULL; |
| } |
| for (int i = 0; i < FF_ARRAY_ELEMS(h265->pps); i++) { |
| av_buffer_unref(&h265->pps_ref[i]); |
| h265->pps[i] = NULL; |
| } |
| |
| h265->active_vps = NULL; |
| h265->active_sps = NULL; |
| h265->active_pps = NULL; |
| } |
| |
| static void cbs_h265_close(CodedBitstreamContext *ctx) |
| { |
| CodedBitstreamH265Context *h265 = ctx->priv_data; |
| int i; |
| |
| ff_h2645_packet_uninit(&h265->common.read_packet); |
| |
| for (i = 0; i < FF_ARRAY_ELEMS(h265->vps); i++) |
| av_buffer_unref(&h265->vps_ref[i]); |
| for (i = 0; i < FF_ARRAY_ELEMS(h265->sps); i++) |
| av_buffer_unref(&h265->sps_ref[i]); |
| for (i = 0; i < FF_ARRAY_ELEMS(h265->pps); i++) |
| av_buffer_unref(&h265->pps_ref[i]); |
| } |
| |
| static void cbs_h264_free_sei(void *opaque, uint8_t *content) |
| { |
| H264RawSEI *sei = (H264RawSEI*)content; |
| ff_cbs_sei_free_message_list(&sei->message_list); |
| av_free(content); |
| } |
| |
| static const CodedBitstreamUnitTypeDescriptor cbs_h264_unit_types[] = { |
| CBS_UNIT_TYPE_POD(H264_NAL_SPS, H264RawSPS), |
| CBS_UNIT_TYPE_POD(H264_NAL_SPS_EXT, H264RawSPSExtension), |
| |
| CBS_UNIT_TYPE_INTERNAL_REF(H264_NAL_PPS, H264RawPPS, slice_group_id), |
| |
| { |
| .nb_unit_types = 3, |
| .unit_types = { |
| H264_NAL_IDR_SLICE, |
| H264_NAL_SLICE, |
| H264_NAL_AUXILIARY_SLICE, |
| }, |
| .content_type = CBS_CONTENT_TYPE_INTERNAL_REFS, |
| .content_size = sizeof(H264RawSlice), |
| .nb_ref_offsets = 1, |
| .ref_offsets = { offsetof(H264RawSlice, data) }, |
| }, |
| |
| CBS_UNIT_TYPE_POD(H264_NAL_AUD, H264RawAUD), |
| CBS_UNIT_TYPE_POD(H264_NAL_FILLER_DATA, H264RawFiller), |
| CBS_UNIT_TYPE_POD(H264_NAL_END_SEQUENCE, H264RawNALUnitHeader), |
| CBS_UNIT_TYPE_POD(H264_NAL_END_STREAM, H264RawNALUnitHeader), |
| |
| CBS_UNIT_TYPE_COMPLEX(H264_NAL_SEI, H264RawSEI, &cbs_h264_free_sei), |
| |
| CBS_UNIT_TYPE_END_OF_LIST |
| }; |
| |
| static void cbs_h265_free_sei(void *opaque, uint8_t *content) |
| { |
| H265RawSEI *sei = (H265RawSEI*)content; |
| ff_cbs_sei_free_message_list(&sei->message_list); |
| av_free(content); |
| } |
| |
| static const CodedBitstreamUnitTypeDescriptor cbs_h265_unit_types[] = { |
| CBS_UNIT_TYPE_INTERNAL_REF(HEVC_NAL_VPS, H265RawVPS, extension_data.data), |
| CBS_UNIT_TYPE_INTERNAL_REF(HEVC_NAL_SPS, H265RawSPS, extension_data.data), |
| CBS_UNIT_TYPE_INTERNAL_REF(HEVC_NAL_PPS, H265RawPPS, extension_data.data), |
| |
| CBS_UNIT_TYPE_POD(HEVC_NAL_AUD, H265RawAUD), |
| |
| { |
| // Slices of non-IRAP pictures. |
| .nb_unit_types = CBS_UNIT_TYPE_RANGE, |
| .unit_type_range_start = HEVC_NAL_TRAIL_N, |
| .unit_type_range_end = HEVC_NAL_RASL_R, |
| |
| .content_type = CBS_CONTENT_TYPE_INTERNAL_REFS, |
| .content_size = sizeof(H265RawSlice), |
| .nb_ref_offsets = 1, |
| .ref_offsets = { offsetof(H265RawSlice, data) }, |
| }, |
| |
| { |
| // Slices of IRAP pictures. |
| .nb_unit_types = CBS_UNIT_TYPE_RANGE, |
| .unit_type_range_start = HEVC_NAL_BLA_W_LP, |
| .unit_type_range_end = HEVC_NAL_CRA_NUT, |
| |
| .content_type = CBS_CONTENT_TYPE_INTERNAL_REFS, |
| .content_size = sizeof(H265RawSlice), |
| .nb_ref_offsets = 1, |
| .ref_offsets = { offsetof(H265RawSlice, data) }, |
| }, |
| |
| { |
| .nb_unit_types = 2, |
| .unit_types = { |
| HEVC_NAL_SEI_PREFIX, |
| HEVC_NAL_SEI_SUFFIX |
| }, |
| .content_type = CBS_CONTENT_TYPE_COMPLEX, |
| .content_size = sizeof(H265RawSEI), |
| .content_free = &cbs_h265_free_sei, |
| }, |
| |
| CBS_UNIT_TYPE_END_OF_LIST |
| }; |
| |
| const CodedBitstreamType ff_cbs_type_h264 = { |
| .codec_id = AV_CODEC_ID_H264, |
| |
| .priv_data_size = sizeof(CodedBitstreamH264Context), |
| |
| .unit_types = cbs_h264_unit_types, |
| |
| .split_fragment = &cbs_h2645_split_fragment, |
| .read_unit = &cbs_h264_read_nal_unit, |
| .write_unit = &cbs_h264_write_nal_unit, |
| .assemble_fragment = &cbs_h2645_assemble_fragment, |
| |
| .flush = &cbs_h264_flush, |
| .close = &cbs_h264_close, |
| }; |
| |
| const CodedBitstreamType ff_cbs_type_h265 = { |
| .codec_id = AV_CODEC_ID_HEVC, |
| |
| .priv_data_size = sizeof(CodedBitstreamH265Context), |
| |
| .unit_types = cbs_h265_unit_types, |
| |
| .split_fragment = &cbs_h2645_split_fragment, |
| .read_unit = &cbs_h265_read_nal_unit, |
| .write_unit = &cbs_h265_write_nal_unit, |
| .assemble_fragment = &cbs_h2645_assemble_fragment, |
| |
| .flush = &cbs_h265_flush, |
| .close = &cbs_h265_close, |
| }; |
| |
| static const SEIMessageTypeDescriptor cbs_sei_common_types[] = { |
| { |
| SEI_TYPE_FILLER_PAYLOAD, |
| 1, 1, |
| sizeof(SEIRawFillerPayload), |
| SEI_MESSAGE_RW(sei, filler_payload), |
| }, |
| { |
| SEI_TYPE_USER_DATA_REGISTERED_ITU_T_T35, |
| 1, 1, |
| sizeof(SEIRawUserDataRegistered), |
| SEI_MESSAGE_RW(sei, user_data_registered), |
| }, |
| { |
| SEI_TYPE_USER_DATA_UNREGISTERED, |
| 1, 1, |
| sizeof(SEIRawUserDataUnregistered), |
| SEI_MESSAGE_RW(sei, user_data_unregistered), |
| }, |
| { |
| SEI_TYPE_MASTERING_DISPLAY_COLOUR_VOLUME, |
| 1, 0, |
| sizeof(SEIRawMasteringDisplayColourVolume), |
| SEI_MESSAGE_RW(sei, mastering_display_colour_volume), |
| }, |
| { |
| SEI_TYPE_CONTENT_LIGHT_LEVEL_INFO, |
| 1, 0, |
| sizeof(SEIRawContentLightLevelInfo), |
| SEI_MESSAGE_RW(sei, content_light_level_info), |
| }, |
| { |
| SEI_TYPE_ALTERNATIVE_TRANSFER_CHARACTERISTICS, |
| 1, 0, |
| sizeof(SEIRawAlternativeTransferCharacteristics), |
| SEI_MESSAGE_RW(sei, alternative_transfer_characteristics), |
| }, |
| SEI_MESSAGE_TYPE_END, |
| }; |
| |
| static const SEIMessageTypeDescriptor cbs_sei_h264_types[] = { |
| { |
| SEI_TYPE_BUFFERING_PERIOD, |
| 1, 0, |
| sizeof(H264RawSEIBufferingPeriod), |
| SEI_MESSAGE_RW(h264, sei_buffering_period), |
| }, |
| { |
| SEI_TYPE_PIC_TIMING, |
| 1, 0, |
| sizeof(H264RawSEIPicTiming), |
| SEI_MESSAGE_RW(h264, sei_pic_timing), |
| }, |
| { |
| SEI_TYPE_PAN_SCAN_RECT, |
| 1, 0, |
| sizeof(H264RawSEIPanScanRect), |
| SEI_MESSAGE_RW(h264, sei_pan_scan_rect), |
| }, |
| { |
| SEI_TYPE_RECOVERY_POINT, |
| 1, 0, |
| sizeof(H264RawSEIRecoveryPoint), |
| SEI_MESSAGE_RW(h264, sei_recovery_point), |
| }, |
| { |
| SEI_TYPE_DISPLAY_ORIENTATION, |
| 1, 0, |
| sizeof(H264RawSEIDisplayOrientation), |
| SEI_MESSAGE_RW(h264, sei_display_orientation), |
| }, |
| SEI_MESSAGE_TYPE_END |
| }; |
| |
| static const SEIMessageTypeDescriptor cbs_sei_h265_types[] = { |
| { |
| SEI_TYPE_BUFFERING_PERIOD, |
| 1, 0, |
| sizeof(H265RawSEIBufferingPeriod), |
| SEI_MESSAGE_RW(h265, sei_buffering_period), |
| }, |
| { |
| SEI_TYPE_PIC_TIMING, |
| 1, 0, |
| sizeof(H265RawSEIPicTiming), |
| SEI_MESSAGE_RW(h265, sei_pic_timing), |
| }, |
| { |
| SEI_TYPE_PAN_SCAN_RECT, |
| 1, 0, |
| sizeof(H265RawSEIPanScanRect), |
| SEI_MESSAGE_RW(h265, sei_pan_scan_rect), |
| }, |
| { |
| SEI_TYPE_RECOVERY_POINT, |
| 1, 0, |
| sizeof(H265RawSEIRecoveryPoint), |
| SEI_MESSAGE_RW(h265, sei_recovery_point), |
| }, |
| { |
| SEI_TYPE_DISPLAY_ORIENTATION, |
| 1, 0, |
| sizeof(H265RawSEIDisplayOrientation), |
| SEI_MESSAGE_RW(h265, sei_display_orientation), |
| }, |
| { |
| SEI_TYPE_ACTIVE_PARAMETER_SETS, |
| 1, 0, |
| sizeof(H265RawSEIActiveParameterSets), |
| SEI_MESSAGE_RW(h265, sei_active_parameter_sets), |
| }, |
| { |
| SEI_TYPE_DECODED_PICTURE_HASH, |
| 0, 1, |
| sizeof(H265RawSEIDecodedPictureHash), |
| SEI_MESSAGE_RW(h265, sei_decoded_picture_hash), |
| }, |
| { |
| SEI_TYPE_TIME_CODE, |
| 1, 0, |
| sizeof(H265RawSEITimeCode), |
| SEI_MESSAGE_RW(h265, sei_time_code), |
| }, |
| { |
| SEI_TYPE_ALPHA_CHANNEL_INFO, |
| 1, 0, |
| sizeof(H265RawSEIAlphaChannelInfo), |
| SEI_MESSAGE_RW(h265, sei_alpha_channel_info), |
| }, |
| SEI_MESSAGE_TYPE_END |
| }; |
| |
| const SEIMessageTypeDescriptor *ff_cbs_sei_find_type(CodedBitstreamContext *ctx, |
| int payload_type) |
| { |
| const SEIMessageTypeDescriptor *codec_list; |
| int i; |
| |
| for (i = 0; cbs_sei_common_types[i].type >= 0; i++) { |
| if (cbs_sei_common_types[i].type == payload_type) |
| return &cbs_sei_common_types[i]; |
| } |
| |
| switch (ctx->codec->codec_id) { |
| case AV_CODEC_ID_H264: |
| codec_list = cbs_sei_h264_types; |
| break; |
| case AV_CODEC_ID_H265: |
| codec_list = cbs_sei_h265_types; |
| break; |
| default: |
| return NULL; |
| } |
| |
| for (i = 0; codec_list[i].type >= 0; i++) { |
| if (codec_list[i].type == payload_type) |
| return &codec_list[i]; |
| } |
| |
| return NULL; |
| } |
